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The simplest level of organization is the___
chemical level
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Give 3 examples of organic chemicals
1. Carbohydrates 2. protein 3.nucleic acids
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Give 3 examples of inorganic chemicals
1.Water 2.oxygen 3.iron
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Most complex level of organization is ____
organ system
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3 examples of the organ system
1.Respiratory 2.skeletal 3.Nervous
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Simplest living level of organization is the _____
cellular level
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When cells with similar structure & function are grouped & work together, they form a ____
tissue
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A group of tissues that is arranged in a particular way to accomplish specific functions is called an ____
organ
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Function: Covers or lines surfaces
Ex: The lining of the stomach & the epidermis of the skin
Epithelial tissue
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Function: Supports, transports or stores materials
EX: Bone, blood
Connective tissue
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Function: Contracts & brings out movement
EX:The heart & skeletal muscle
Muscle tissue
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Functions: Transmits impulses that regulates body functions
EX: Spinal cord, brain
Nerve tissue
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The structure of a tissue or cell or organ
Also, the study of body structure, which includes size, shape composition, coloration
Anatomy
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The functions of the tissue, cell or organ
Also, study of how the body functions
Physiology
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Describe 1 way the physiology of a bone (an organ) is related to it's anatomy
Bones support or protect the body & are strong or hard
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All of the chemical reactions and physical changes that take place in the body
Matablosim
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the amount of heat & energy produced by the body per unit if time is____
metabolic rate
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A person who is in good health is____ & despite constant changes, the body remains stable(the same)
homeostasis
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Changes that affect the body may take place where?
Externally or internally
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To maintain homeostasis:
Eating lunch?
Food is digested or broken down into simple chemicals that the body can use
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To maintain homeostasis:
Inhaling?
Oxygen enters the blood to become available to cells
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To maintain homeostasis:
Having a headache?
Take aspirin (take a nap)
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To maintain homeostasis:
Cutting your finger?
Blood will clot to prevent blood loss
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To maintain homeostasis:
Going outside on a cold day?
Shivering will occur to produce heat
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Stimulus »Response by body Increases» Stimulus is Decreased» Response by the body Decreases »Stimulus occurs Again
Negative feedback mechanism
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Body's response reverses stimulus
Negative feedback mechanism
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Stimulus does not stop or reverse stimulus
Positive feedback mechanism
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Above or higher
- Superior
- EX: The heart is superior to the liver
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Below or lower
- Inferior
- EX: The liver is inferior to the lungs
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Toward the front
- Anterior/Ventral
- EX: The chest is on the anterior side of the body
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Toward the back
- Posterior/Dorsal
- EX: The lumbar area is posterior to the umbilical area
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Toward the midline
- Medial
- EX: The heart is medial to the lungs
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Away from the midline
- Lateral
- EX: The shoulders are lateral to the neck
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Within or interior to
- Internal/Deep
- EX: The brain is internal to the skull
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Outside or exterior to
- External
- EX: The ribs are external to the lungs
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Toward the surface
- Superficial
- EX: The skin is the most superficial organ
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The main part
- Central
- EX: The brain is part of the central nervous system
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Extending from the main part
- Peripheral
- EX: Nerves in the arm are part of the peripheral nervous system
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Closer to the origin
- Proximal
- EX: The knee is proximal to the foot
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farther from the origin
- Distal
- EX:the palm is distal to the elbow
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pertaining to the wall of a cavity
- Parietal
- EX: The parietal pleura lines the chest cavity
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Pertaining to the organs within a cavity
- Visceral
- EX: The visceral pleura covers the lungs
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Lined with meninges & contains the brain
Cranial cavity
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Lined with the parietal pleura, contains the heart & lungs, the inferior boundary is the diaphragm
Thoracic cavity
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Contains the spinal cord, Lined with meninges
Spinal cavity
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Contains the internal reproductive organs & urinary bladder
Pelvic cavity
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Lined with the peritoneum, the superior boundary is the diaphragm, contains the liver & pancreas
Abdominal cavity
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A plane that divides the body into right & left portions
Sagittal section
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A plane perpendicular to the long axis of an organ
Cross-section
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A plane that divides the body into front & back portions
Frontal section
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A plane that divides the body into upper & lower portions
Transverse section
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A plane along the long axis of an organ
Longitudinal section
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Moves the skeleton & produces heat
Muscular system
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Transports oxygen & nutrients to tissues
Circulatory system
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Produces egg or sperm to continue the human species
Reproductive system
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Supports the body & protects internal organs
Skeletal system
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Removes waste products from the blood
Urinary system
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Exchanges oxygen & carbon dioxide between the blood & air
Respiratory system
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Regulates body functions by means of impulses
Nervous system
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Regulates body functions by means of hormones
Endocrine system
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Destroys pathogens that enter the body
Lymphatic system
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Changes food to simpler chemicals to be absorbed
Digestive system
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Is a barrier to pathogens & to chemicals
Integumentary system
-
-
-
-
-
-
-
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Reproductive or endocrine
Pancreas
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Lymphatic or Circulatory
Spleen
-
-
Reproductive or endocrine
Testes
-
-
-
-
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Pituitary gland
Endocrine
-
-
Sweat glands
Integumentary
-
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The serous membrane of the thoracic cavity
Pleural membranes
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the smaller living unit of the body
cell
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Lines the abdominal cavity
peritoneum
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Covers the abdominal organs
mesentery
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membranes that cover the organs of the centric nervous system
meninges
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to cut or divide the body or a part
section
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stability of the internal environment of the body
homeostasis
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Chemicals that contain carbon
Organic
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A compartment within the body
Body cavity
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Study of how the body functions
Physiology
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Chemicals that do not contain carbon
Inorganic
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A group of organs that work together to perform specific functions
organ system
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Detailed x-ray images are produced using this method
CT Scanning
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Imaginary flat surface that separates the body
Plane
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Study of disorders of functioning
Pathophysiology
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A group of cells with similar structure & function
tissue
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Membranes that surround the heart
Pericardial
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Study of body structure
Anatomy
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A group of tissues precisely arranged to accomplish specific functions
organ
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Magnetic resonance imaging
MRI
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Surgery involving the intestines requires an incision through the abdominal wall. Name the layers that must be cut to enter the abdominal cavity?
1.The skin & subcutaneous tissue (part of the ineg system) 2.Muscles of the abdominal wall (provides for movement of the trunk) 3.Peritoneum (the lining of the abdominal cavity)
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meningitis is a serious disease caused by certain bacteria. Name the membranes affected & the organs they cover?
- Membranes: Meninges
- Organs: Brain & spinal cord
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The kidneys have stopped functioning
renal failure
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The heart has stopped beating
cardiac arrest
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A blood vessel of the lung
Pulmonary vein
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An unconscious state due to disease of liver
Hepatic coma
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An erosion of the stomach lining
Gastric ulcer
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Which quadrant?
Stomach
Upper left
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Which quadrant?
Liver
Upper right & left
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Which quadrant?
Small intestine
ALL FOUR
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Which quadrant?
Large intestine
ALL FOUR
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The diaphragm separates the___
thoracic & abdominal cavities
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The body is cut in a mid-transverse section, & is now separated into two parts that may be called:
Superior-inferior
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A cross-section of an artery would look like a:
hollow circle
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The most inferior body cavity is the :
Pelvic cavity
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The most superior body cavity is:
Cranial cavity
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The most superior body system:
Integumentary system
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A tissue found on the surface of an organ must be a:
epithelial tissue
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A tissue that causes contractions of the stomach to mix food with gastric juice must be a type of:
muscle tissue
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The tissue that enables you to think & answer all of these questions is:
Nerve tissue
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A tissue that supports body parts or transports materials within the body is a type of:
Connective tissue
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Homeostasis means that the internal environment of the body is:
Relatively stable in spite of constant changes
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The 2 organ systems that regulate body functions by means of impulses & hormones are the:
Nervous & endocrine
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The 2 organ systems that are most responsible for protecting the body against pathogens are the:
Integumentary & lymphatic
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The anatomy of an organ:
Size, types of cells present & shape NOT FUNCTION
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The abdomen has how many quadrants & how many regions?
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A feedback mechanism that contains its own brake is called:
negative feedback mechanism
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A feedback mechanism that requires an external brake is called:
positive feedback mechanism
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The disadvantage of a positive feedback mechanism is that it may:
Slow down unless an external event keeps it going
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Parts of the upper limb?
Palmar, brachial & antecubital
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Part of the lower limb?
Popliteal, Patellar, femoral
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Part of the trunk of the body?
Umbilical, lumbar, pectoral
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The metabolism of the body includes:
breathing, any chemical reactions, any physical change
-
A range of possible values, from low to high
Normal values of metabolism
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The chemical level of organization of the body includes
water, oxygen & protein
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Muscles are part of the____
Organ level
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The organ level of organization includes:
Arteries, liver & kidneys
-
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Levels of organization in proper order of increasing complexity?
Chemicals, cells, tissues, organs, organ system
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General Function:
Muscle
Specialized to function
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General Function:
Connective tissue
Specialized to support, transport or store minerals
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General Function:
Epithelial
Specialized to cover or line body surfaces
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General Function:
Nerve Tissue
Specialized to generate & transmit pulses
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State of good health
External changes bring about specific responses by the body
Internal changes have effects on it
-The proper functioning of all the organ systems contribute it
Homeostasis
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Lines the cranial cavity
Meninges membrane
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Covers the lungs
visceral pleura membrane
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Lines the thoracic cavity
Parietal pleura membrane
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Lines abdominal cavity
Peritoneum membrane
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A midsagittal section of the head would cut through:
nose, mouth & brain
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Lateral to midline of head
eyes & ears
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A midfrontal section of the body would separate the:
midtransverse section
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-The human body contains many different types of these
-Made up of inorganic & organic chemicals
-Smallest living subunits of structure & function
Cells
-
A group of cells with similar structure & function is called:
Tissues
-
-Consists of the cranial & spinal cavities
Dorsal cavity
-
-Consists of the thoracic, abdominal & pelvic cavities
Ventral cavity
-
The serous membranes of the thoracic cavity
Pleural membrane
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Separates the thoracic & abdominal cavities
Diaphragm
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-It describes body functioning as a whole
-Energy & heat production are called metabolic rate
-Physical changes are part of it
-External changes affect it
Metabolism
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The muscular system is external to the _____
skeletal sysytem
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The cervical area is medial to the ___
deltoid areas
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-All aspects of metabolism contribute it
-Changes inside the body may bring about further changes
-Changes outside the body may bring about changes inside the body
-Many aspects of body function have a range of normal values
Homeostasis
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-The brachial area is to the upper limb as the femoral area is to the lower limb
-The scapular area is both dorsal & posterior
-The temporal areas are anterior to the occipital area
-A midsagittal section of the trunk would separate the 2 iliac areas
Body part areas (body in anatomic positions)
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-If an organ is shaped like a tube, it probably transports something
-The nervous system is one of the major regulatory systems of the body
-The chemical level of organization includes minerals & organic chemicals
Levels of organization of the body
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