1) during the cori cycle, in the liver
a) glucose is released from glycogen.
b) lactic acid is produced from glucose.
c) glucose is produced from lactic acid.
d) lactic acid is produced from pyruvic acid.
e) lactic acid is shuffled to muscle cells.
2) ________ involves a cascade of reactions leading to the conversion of fibrinogen to
fibrin.
a) vascular spasm
b) the platelet phase
c) retraction
d) coagulation
e) fibrinolysis
3) which of the following is not a function of synovial fluid?
a) shock absorption
b) increases osmotic pressure within joint
c) lubrication
d) provides nutrients
e) protects articular cartilages
4) melanocyte-stimulating hormone (msh) is secreted by the human pars intermedia
a) during pregnancy.
b) in very young children.
c) during fetal development.
d) in some disease processes.
e) all of the answers are correct.
5) damage to which of the following muscles would interfere most with the ability to
breathe?
a) pterygoid
b) rectus abdominis
c) intercostals
d) platysma
e) digastric
6) how would the loss of acetylcholinesterase from the motor end plate affect skeletal
muscle?
a) it would make the muscles less excitable.
b) it would produce muscle weakness.
c) it would cause spastic paralysis (muscles are contracted and unable to relax).
d) it would cause flaccid paralysis (muscles are relaxed and unable to contract).
e) it would have little effect on skeletal muscles.
7) the membranous areas between the cranial bones of the fetal skull are
a) fontanels.
b) sutures.
c) wormian bones.
d) foramina.
e) fibrocartilaginous discs.
8) a reflex that is used to assess the sensory function of the trigeminal nerve is the
________ reflex.
a) corneal
b) tympanic
c) auditory
d) vestibulo-ocular
e) consensual
9) approximately the last 15 cm of the digestive tract is the
a) anus.
b) anal canal.
c) rectum.
d) sigmoid colon.
e) rectal column.
10) the floor of the diencephalon is formed by the
a) hypothalamus.
b) thalamus.
c) brain stem.
d) mesencephalon.
e) myelencephalon.
11) the pulmonary veins carry blood to the
a) heart.
b) lungs.
c) brain.
d) intestines.
e) liver.
12) class ii mhc proteins are present in the plasma membrane only
a) when plasma cells are releasing antibodies.
b) in antigen-presenting cells and lymphocytes.
c) when cytotoxic t cells are inhibited.
d) when nk cells are activated.
e) during infections.
13) the vitamin that is a coenzyme in amino acid and nucleic acid metabolism is
a) pantothenic acid.
b) pyridoxine (b6).
c) folic acid (folate).
d) vitamin c.
e) vitamin k.
14) the sternocleidomastoid inserts on the
a) occipital bone.
b) clavicle.
c) mastoid process.
d) sternum.
e) mandible.
15)
figure 26-1 the structure of the kidney
identify the structure labeled “9”
a) renal sinus
b) fibrous capsule
c) renal pyramid
d) renal papilla
e) renal column
16) the kidneys and ureters are organs of the ________ system.
a) endocrine
b) digestive
c) respiratory
d) urinary
e) lymphatic
17) at a po2 of 70 mm hg and normal temperature and ph, hemoglobin is ________
percent saturated with oxygen.
a) 10
b) 25
c) 50
d) 75
e) more than 90
18) the layer of hard keratin that coats the hair is termed the
a) medulla.
b) cuticle.
c) hair bulb.
d) root.
e) shaft.
19) all of the following provide chemoreceptor input to the respiratory centers of the
medulla oblongata, except the
a) olfactory epithelium.
b) medullary chemoreceptors.
c) aortic body.
d) carotid body.
e) all of the answers are correct.