1) prolactin is secreted during pregnancy to stimulate milk synthesis so that milk will be
available by the time the infant is born.
2) a sacral fracture affecting the s3 and s4 nerve roots would result in a person having
difficulty with evacuation of the bowels.
3) under normal circumstances, the wrist can be hyperextended, but the elbow cannot.
4) most tissue fluid is reabsorbed by the lymphatic system.
5) the most important components in the cytoplasm of rbcs are hemoglobin and
carbonic anhydrase.
6) hemoglobin releases the same amount of oxygen to all the tissues regardless of
variations in their metabolic rate.
7) glomerular capillaries suffer little damage from hypertension because of the
protective influence of the afferent arterioles.
8) an action potential never occurs in dendrites.
9) monocytes differentiate into large phagocytic cells.
10) the vagina has no glands but it is moistened by mucus from glands in the cervical
canal.
11) sometimes anatomical terms come from origins that do not lend any insight into
their meaning.
12) bones grow in diameter by interstitial growth.
13) which of the following is more effective in producing bronchodilation?
a. acetylcholine
b. nicotine
c. muscarine
d. norepinephrine
e. thyroxine
14) the first 6 weeks of postpartum life constitute the __________ period.
a. transitional
b. premature
c. neonatal
d. senescence
e. infancy
15) which of the following would notlead to polycythemia?
a. cancer of the erythropoietic line of the red bone marrow
b. iron deficiency
c. dehydration
d. emphysema
e. excessive aerobic exercise
16) when you walk up the stairs, your hip and knee joints __________ to lift your body
weight.
a. rotate
b. abduct
c. adduct
d. flex
e. extend
17) skeletal muscle is called ___________, because it is usually subject to conscious
control.
a. excitable
b. contractile
c. striated
d. voluntary
e. isometric
18) conditions around metabolically active tissues do what to the oxyhemoglobin
dissociation curve?
a. shift it right
b. shift it left
c. decrease the slope
d. increase the slope
19) what is the synthesis of glucose from amino acids called?
a. glycogenesis
b. glycogenolysis
c. glycolysis
d. gluconeogenesis
e. glycogen catabolism
20) the thoracic cavity and abdominopelvic cavity are eachlined with ___________.
a. an endothelium
b. the pericardium
c. the meninges
d. a serous membrane
e. amucous membrane
21) anticodons, codons, and base triplets correspond to __________ respectively.
a. trna, dna, and mrna
b. dna, trna, and mrna
c. trna, mrna, and dna
d. dna, rna, and pre-mrna
e. rna, dna, and pre-mrna
22) the first of a series of neutrophil behaviors in inflammation is __________.
a. chemotaxis
b. margination
c. diapedesis
d. phagocytosis
e. opsonization
23) which of the following is something antibodies do not do?
a. link antigen molecules together
b. neutralize antigens by binding to regions of an antigen that can be pathogenic
c. bind to enemy cells, thus changing their shape so their complement-binding sites are
exposed
d. differentiate into memory antibodies, which upon reexposure to the same pathogen
would mount a quicker attack
e. bind antigen molecules of two or more enemy cells and stick them together
24) ribosomes are made of proteins and rna.
25) the __________ and __________ systems control and coordinate the 50 trillion
cells in a human.
a. muscular; nervous
b. circulatory; lymphatic
c. endocrine; nervous
d. circulatory; endocrine
e. muscular;skeletal
26) which of the following is not found in the ureter?
a. adventitia
b. two layers of smooth muscle
c. three layers of smooth muscle
d. transitional epithelium
e. skeletal muscle
27) which of the following is true regarding the tendon reflex?
a. it causes a muscle that is being stretched to contract.
b. it makes the contralateral motor neurons contract.
c. it makes the ipsilateral motor neurons relax.
d. it prevents overcontraction of a muscle.
e. it causes a tendon to contract.
28) creatinine has a renal clearance of 140 ml/min. why is this?
a. it is absorbed by the nephron loop.
b. it is secreted by the glomerulus.
c. it is absorbed by the renal tubules.
d. it is secreted by the renal tubules.
e. it is produced in the pulmonary tissue.
29) why do cones exhibit less neuronal convergence than rods?
a. rods cannot distinguish different colors from each other.
b. rods do not function in bright light.
c. no images are perceived within the optic disc.
d. cones do not detect black and white.
e. photopic vision has higher resolution than scotopic vision.