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Intestines would be found in what region?
Left iliac
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the parietal pleural would represent...
a serous membrane lining the thoracic cavity
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lungs are located in three cavities...what are they?
pleural, ventral, and thoracic
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Put molecules, atoms, organs, cells, and and tissues in order from simplest to most complex
Atoms, Molecules, Cells, Tissues, Organs
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the stomach is located in what cavity?
Left upper
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Subdivisions of anatomy include:
Gross, Regional, Systemic, and Surface
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The term pollex refers to
the thumb
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The dorsal body cavity is the site of the brain
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Sagittal
vertical dividing left and right
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Frontal
vertical, dividing anterior and posterior
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The dorsal cavity protects the nervous system
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Ribosomal RNA forms part of the protein systhesis site in the
cytoplasm
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Tranfer RNA act as “interpreter” molecules that...
recognize specific amino acids and nucleotide base sequences
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Synthetase enzymes attach the correct amino acid to...
its transfer RNA
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ATP provides the energy needed for
synthesis reactions
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Messenger RNA is found in
the cytoplasm
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Messenger RNA specifies
the exact sequence of amino acids of the protein to be made
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Ribosomal RNA may be attached to the ____or scattered in the ____________
ER, cytoplasm
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Chromosomes decoil to form chromatin in what phase?
telophase
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Chromosomal cetromeres split and chromosomes migrate to oppisite ends of the cell in what phase?
anaphase
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Nuclear membrane and nucleolus disintegrate in what phase?
late prophase
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Chromosomes align on the spindle equator in what phase?
metaphase
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Centrioles move to oppisite ends of the cell in what phase?
early prophase
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ER plays a role in the synthesis of steroid-based hormones and proteins
-
the actual site of protein synthesis
Ribosomes
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Hollow cytoskeletal elements that act as organizers for the cytoskeleton are called
microtubules
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Nucleoli are dense spherical bodies in the nucleus that are the synthesis site for
ribosomal RNA
-
Nucleus houses
DNA and RNA
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Tight junctions help prevent molecules from passing through the extracellular space between adjacent cells
-
a type of anchoring junction
Desmosomes
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____ junctions are communicators and are present in electrically excitable tissues
Gap
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______ are abundant in tissues subjected to great mechanical stress
Desmosomes
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Both potassium and sodium ions can “leak” through the cell membrane due to diffusion
-
In certain kinds of muscle cells, calcium ions are stored in the smooth ER
-
The RNA responsible for bringing the amino acids to the “factory” site for protein formation is
tRNA
-
The plasma membrane is
the phospholipid bilayer surrounding the cell
-
The plasma membrane is selectively permeable
-
The plasma membrane acts as a site of cell-to-cell interaction and recognition
-
finger-like projections that increase the absorbing surface of cells
Microvilli
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If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable the cells will
lose water and shrink
-
Once solid material is phagocytized and taken into a vacuole a lysosome combines with the vacuole and digests the enclosed solid material
-
Riboswitches are
folded RNA’s that act as switches to turn protein synthesis on or off in response to changes in the enviroment
-
Plasma membrane protein transport molecules through the membrane
-
mRNA, tRNA, and rRNA play a role in
protein synthesis
-
Mitosis produces
nucleus replication
-
Centrioles consist of
microtubules arranged to form a hollow tube
-
Melanin is an
inclusion not an organelle
-
Recptor-mediated endocytosis is the main mechanism for the movement of most macromolecules by body cells
-
Passive membrane transport processes include
movement of a substance down its concentration gradient
-
Enzymes called caspases destroy the cell’s DNA and cytoskeleton, producing a quick death of the cell
-
Mitochondria contain some of the DNA and RNA code necessary for their own function
-
Peroxisomes are able to detoxify substances by
enzymatic action
-
DNA replication takes place during
interphase of the cell cycle
-
In the maintenance of the cell resting membrane potential extracellular sodium levels are high
-
A cell is the basic structural and functional unit of living organisms
-
Phosphlipids form a bilayer that is largely impermeable to water-soluble molecules
-
Cyclic AMP and calcium may be second messengers
-
The main component of the cytosol is
water
-
Lysosomes contain acid hydrolases that are potentially dangerous to the cell
-
The endomembrane system is an interactive system of organelles whose membranes are physically or functionally connected
-
The functions of centrioles include
organizing the mitotic spindle in cell division
-
A gene can best be defined as
a segment of DNA that carriers the instructions for one polypeptide chain
-
Extracellular matrix is the most abundant extracellular material
-
Crenation is likely to occur in blood cells in
a hypertonic solution
-
Some hormones enter cells via
receptor-mediated endocytosis
-
Keratinocytes are the most abundant cells of the
epidermis
-
Keratin is the protein found in the epidermis that is responsible for
toughening the skin
-
Cells plus a disc-like sensory nerve ending that functions as a sensory receptor for touch
Merkel disc
-
Epidermal dendritic cells are skin macrophages that help activate the
immune system
-
Cornified keratinocytes are cell remnants of the
stratum corneum
-
Stratum corneum is the layer of the epidermis where the cells are
considered protective but not viable
-
The glands that serve an important function in thermoregulation are the
sudoriferous glands
-
The layer that contains the mitotic viable cells of the epidermis is the
Stratum basale
-
Hair that lacks pigment and is often called “immature hair” is
vellus
-
Erythemia may indicate
embarrassment, fever, hypertension, inflammation, or allergy
-
Pallor may indicate
fear, anger, anemia, or low blood pressure
-
Jaundice usually indicates
a liver disorder
-
Addison’s disease gives the apearance of
a permanent tan; bronzing
-
Cyanosis gives
a blueish color in light skinned individuals
-
Melanomas are rare but must be removed quickly to prevent them from
metastasizing
-
Porphyria is an inherited condition that affects
the heme pathway; it leaves the skin scarredand gums degenerated, and may have led to the folklore about vampires
-
A needle would pierce the epidermal layers of the forarm in this order
Corneum, Granulosum, Spinosum, Basale
-
Acne is a disorder associated with
sebaceous glands
-
Arrector pili cause
goose bumps
-
If a splinter penetrated the second epidermal layer of the sole of the foot it would damage the
lucidum
-
Meissner’s corpuscles are specialized for reception of
touch or light pressure
-
Kinky hair has flat, ribbonlike hair shafts
-
Ceruminous glands secrete cerumen, which is thought to
deter insects
-
The function of the root hair plexus is to allow the hair to
assist in touch sensation
-
Vernix caseosa is a whitsh material produced by
fetal sebceous glands
-
The ceruminous gland is a modified sudoriferous gland that secretes
wax
-
Nutrients reach the surface of the skin through the process of
diffusing through the tissue fluid from blood vessels in the dermis
-
The major part of the hypodermis’s make-up is
adipose which serves as an effective shock absorber
-
Squamous cell carcinoma appears as a
scaly reddened papule and tends to grow rapidly and matastasize
-
Keratinocytes are an important epidermal cell because they produce a
fibrous protein that give the skin much of its protective properties
-
The Stratum basale is responsible for
cell division and replacement in the epidermis
-
Macrophages called epidermal dendritic cells arise from
bone marrow and migrate to the epidermis
-
Lamellated granules of the cells of the stratum granulosum, a glycolipid that is secreted into extracellular spaces proctect against excessive water loss through the skin
-
Fibroblasts, macrophages, and mast cells are likely to be found in the
dermis
-
The reticular layer of the dermis constitutes 80% of the dermis and is responsible for
the tension lines in the skin
-
Prolonged exposure to the sun induces melanin dispersion, which in turn acts as a
natural sunscreen
-
An epidermal dendritic cell is a specialized
phagocytic cell
-
Fingernails are a modification of the
epidermis
-
Eccrine and apocrine glands are
sweat glands
-
The composition of the secretions of the eccrine glands is
99% water, sodium chloride, trace amounts of wastes, and vitamin C
-
Apocrine glands are found in the
axillary and anogenital area
-
The secretion of sebum is stimulated by
hormones, ecspecially androgens
-
The extent of burn damage is determined by
the rule of nines
-
Eyebrow follicles are
only active for a few months
-
With osteoporosis bones are
porous and thin but bone composition is normal
-
With osteomalacia bone formed is
poorly mineralized, soft, and deforms on weight bearing
-
Paget’s disease causes
abnormal bone formation and reabsorption
-
Comminuted fracture
bone fragments into many pieces
-
The lining of the marrow cavity is the
endosteum
-
Osteoclasts are cells that
can dissolve the bony matrix
-
Lamellae are layers of
bony matrix
-
Canaliculi are small channels that radiate through
the matrix of bone
-
Osteoblasts are cells that
can build bony matrix
-
Chondrocytes are the cells responsible for
the early stages of endochondral ossification
-
The growth pattern of bone in which matrix is laid down on the surface is called
appositional growth
-
Diaphysis is the area of long bones where
cartilage cells are replaced by bone cells
-
The appearance of the epiphyseal line signals
the end of bone growth
-
Area where longitudinal bone growth takes place is called
the epiphyseal plate
-
Compact bone is adapted to
support weight and withstand tension stress
-
The cell responsible for secreting the matrix of bone is
the osteoblast
-
Hyaline cartilage is
the forerunner of long bones in the embryo
-
Deficiency of GH during bone formation can cause
decreased proliferation of the epiphyseal plate cartilage
-
A fracture in the shaft of the bone would be a break in the
diaphysis
-
The term diploe refers to
the internal layer of spongy bone in flat bones
-
Ossification of the ends of long bones is produced by
secondary ossification centers
-
The most abundant skeletal cartilage type is
hyaline
-
The osteon is the structural unit of
compact bone
-
Bones are covered and lined by protective tissue called
periosteum
-
The periosteum is secured to the underlying bone by
dense connective tissue called perforating fibers or sharpey’s fibers
-
The canal that runs through the core of each osteon is
the Haversian canal
-
The Haversian canal is the site of
blood vessels and nerve fibers
-
Lacunae are the small spaces in
bone tissue that osteocytes live in
-
The process of bones increasing in width is known as
appositional growth
-
Parathyroid hormone increases osteoclast activity to release
more calcium ions into the blood stream
-
Cranial bones develop within
fibrous membranes
-
The thyroid produces hormones that
decrease blood calcium levels
-
Osteomyelitis is due to
pus-forming bacteria
-
In the epiphyseal plate, cartilage grows by
pushing the epiphysis away from the diaphysis
-
Spongy bones are made up of
a framework called trabeculae
-
Blood cell formation is called
hematopoiesis
-
A bone embedded in a tendon is called a
sesamoid bone
-
A foramen is
a round or oval hole through a bone that contains blood vessels and or nerves
-
Lacrimal bones are
very small bones at the medial wall of each orbit
-
The temporal bones house the
apparatus of the internal and middle ear
-
Lacrimal bones have a passageway into the
nasal cavity
-
The sella turica is a portion of the
sphenoid bone
-
The fingers have three and the thumb has two
phalnges
-
The humerous articulates with the
glenoid fossa
-
The radius articulates with
The radius articulates with
-
The lumbar vertebrae have the thickest
centrum
-
The lumbar vertebrae have
short blunt spinous processes
-
The coccyx is a
fused rudimentary bone
-
The atlas is a circle of bone that articulates superiorly with
the occipital condyles
-
The thoracic vertebrae have
articular facets for the ribs
-
The ilium forms the largest portion of the
coxal bone
-
The skull, vertebral column, and rib cage make up the
axial skeleton
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