BioS255 comprehensive exam questions
3 protein fibers in connective tissues - CORRECT ANSWER -
collagenous fibers, elastic fibers, and reticular fibers.
5 steps of endochondral ossification - CORRECT ANSWER - 1.
Chondrocytes enlarge and matrix begins to calcify
2. Bone formation starts at the shaft surface
3. Blood vessels invade inner region of cartilage
4. Osteoclasts begin to break down spongy bone in center
5. Centers of the epiphyses begin to calcify
action potential triggering - CORRECT ANSWER - -occurs when a
neuron sends information down an axon, away from the cell body.
1. At rest, voltage-gated Na+ and K + gates are closed.
2. Chemical or mechanical stimulus causes a graded potential to reach at
least (-55mV or threshold) This is "depolarization"2. Voltage-gated Na+
channels open and Na+ rushes into cell
3. Only a total of 20,000 Na+ actually enter the cell, but they change the
membrane potential considerably (up to +30mV)
alveoli and capillaries - CORRECT ANSWER - site of gas exchange
, Anti-diuretic hormone (ADH) - CORRECT ANSWER - A hormone
produced by the pituitary gland when the body is dehydrated. It causes
the kidneys to reabsorb more water into the blood making the urine
more concentrated.
Articular process of bone - CORRECT ANSWER - limits rotation
Artificially acquired passive immunity - CORRECT ANSWER -
antibodies gathered from a human or other animal and are injected into
an individual. Ex.) antiserum for a snakebite, rabies
Backflow of heart from pulmonary valve - CORRECT ANSWER -
Narrowing of the pulmonary valve reduces the blood flow from the heart
to the pulmonary artery and lungs. If the pulmonary valve don't close
tightly, causing blood to leak backward into the right ventricle.
Blood transfusion given to B- - CORRECT ANSWER - B neg blood types
can only receive blood from B- or O-
Brain and forceful breathing - CORRECT ANSWER - controlled by
medulla oblongata
Calcium is required for - CORRECT ANSWER - initiation of muscle
contraction
3 protein fibers in connective tissues - CORRECT ANSWER -
collagenous fibers, elastic fibers, and reticular fibers.
5 steps of endochondral ossification - CORRECT ANSWER - 1.
Chondrocytes enlarge and matrix begins to calcify
2. Bone formation starts at the shaft surface
3. Blood vessels invade inner region of cartilage
4. Osteoclasts begin to break down spongy bone in center
5. Centers of the epiphyses begin to calcify
action potential triggering - CORRECT ANSWER - -occurs when a
neuron sends information down an axon, away from the cell body.
1. At rest, voltage-gated Na+ and K + gates are closed.
2. Chemical or mechanical stimulus causes a graded potential to reach at
least (-55mV or threshold) This is "depolarization"2. Voltage-gated Na+
channels open and Na+ rushes into cell
3. Only a total of 20,000 Na+ actually enter the cell, but they change the
membrane potential considerably (up to +30mV)
alveoli and capillaries - CORRECT ANSWER - site of gas exchange
, Anti-diuretic hormone (ADH) - CORRECT ANSWER - A hormone
produced by the pituitary gland when the body is dehydrated. It causes
the kidneys to reabsorb more water into the blood making the urine
more concentrated.
Articular process of bone - CORRECT ANSWER - limits rotation
Artificially acquired passive immunity - CORRECT ANSWER -
antibodies gathered from a human or other animal and are injected into
an individual. Ex.) antiserum for a snakebite, rabies
Backflow of heart from pulmonary valve - CORRECT ANSWER -
Narrowing of the pulmonary valve reduces the blood flow from the heart
to the pulmonary artery and lungs. If the pulmonary valve don't close
tightly, causing blood to leak backward into the right ventricle.
Blood transfusion given to B- - CORRECT ANSWER - B neg blood types
can only receive blood from B- or O-
Brain and forceful breathing - CORRECT ANSWER - controlled by
medulla oblongata
Calcium is required for - CORRECT ANSWER - initiation of muscle
contraction
