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Muscle Tissue Contracts to Produce Movement
---Mucle :
- Skeletal
- moves body parts
- Voluntary, multinucleated (long, Large)
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Muscle Tissue Contracts to Produce Movement
Cardiac Muscle:
- Smooth mucle
- Invouluntary,signal nucleus
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Muscle Tissue Contracts to Produce Movement
Smooth Musscle
- Surrounds hallow structures
- Invouluntary, single nucleus
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FYI: Skeletal Muscle (x100) Skeletal Muscle cells are very long and have many nuclei
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Fyi: Cardiac muscles (x225) Cardiac muscles cells interconnect with eachother.
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FYI: sheet of smooth muscle (X250) smooth muscle cells are thin and tapered
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Nurevous Tissues Transmit Impulses
Neuron:
Specialized nervous system cell
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Nurevous Tissues Transmit Impulses
Neuron:FUNCTION
Generate and transmit electrical ipulses
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Nurevous Tissues Transmit Impulses
Neuron:STRUCTURAL COMPONENTS:
cell body, dendritesiaxon
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Nurevous Tissues Transmit Impulses
GLIAL CELLS:
support nuerons
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Organ and organ systems perform complex functions
ORGANS:
Contain two or more tisssues types joined together;perform specific functions
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Organ and organ systems perform complex functions
ORGANS SYSTEMS:
groups of organs that perform a common function
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Organ and organ systems perform complex functions
ORGANS: EXAMPLES:
- digestive system: mouth, throat, stomach,intestines and liver
- Lymphatic system:lymph nodes, tonsils, and spleen
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Body cavaties
ANTERIOR CAVITY:
- Thoracic cavity
- twopleural cavities
- Pericardial cavity
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Body Cavities
ABDOMINAL CAVITY:
- Prosterior cavity
- Cranial cavity
- spinal cavity
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BODY CAVITIES
- Tissue membrane (serous membrane) lines body cavities
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Tissue Membrnes
SERIOUS MEMBRANE
- reduces friction between organs
- Ex: Pleural membrane around lungs
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Tissue Membrnes
Mucous membrane:
- lubricates surface, captures debris
- lines the body cavities open to the oustside
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Tissue Membrnes
SYNOVIAL MEMBRANE:
- Lines spaces in movable joints
- secrete synovial fluid (knee)
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Tissue Membrnes
CUTANEOUS MEMBRANE:
skin
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FYI: LUNG PLUERA (SEROUS MEMBRANES)
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VISECUREAL PLURA
layer of plura lining the surface of the lungs
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PARIETAL PLUEURA
lines the thoratic body wall
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The skin as an Organ System
The Proper Name is...
Integumentary system
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The skin as an Organ System
Includes:
skin, hair, nail,gland
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The skin as an Organ System
FUNCTIONS
- prevent dehydration
- protects from injury
- serves as defence against microorganisms
- regulates body temperatur
- makes vitamin D
- provides sensations
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Skin Consist of Epidermis and Dermis
EPIDERMIS:
- outer layer
- stratified squamous epithelial cells (be able to identify shape, orginization of shape)
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Skin Consist of Epidermis and Dermis
EPIDERMIS: TWO MAJO CELL TYPES
- specialized kratinocytes
- melanocytes
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Skin Consist of Epidermis and Dermis
DERMIS:
- Lies underneath the epedermis
- fibers
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Skin Consist of Epidermis and Dermis
DERMIS: FIBERS
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Skin Consist of Epidermis and Dermis
DERMIS: Cells
- Fibroblasts
- mast cells
- white blood cells
- fat cells
- (oil glands located)
- (more nerves going through)
- (sweat gland held)
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Accessory strusctures of Dermis
Hair:
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Accessory strusctures of Dermis
Smooth muscle
attached to hair folicle,raises hair to upright position
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Accessory strusctures of Dermis
Oil glands
secretions moistens and softens skin
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Accessory Structures of Dermis
Sweat glands
secretes sweat, help in temperature regulation
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Accessory strusctures of Dermis
Blood vessels
supply nutrients, remove waste, assist in temperature regulation constricting, dialating, expanding
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Accessory strusctures of Dermis
Sensory nerve ending:
detect heat, cold, touch, deep pressure, vibration
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Multicellular Organisms Must maintain Homeosasis
Maintaince of relaitive constancy of the condions of the internal enviornment
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