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Which area of the graph shows when chemically gated sodium channels are open?
Figure 12-2 The Nerve Action Potential
A) 3
B) 1
C) 2
D) 5
E) 4
Atoms of the same element whose nuclei contain the same number of protons, but
different numbers of neutrons, are called
A) isotonics.
B) heterotopes.
C) isotopes.
D) homotopes.
E) heterotonics.
Identify the structure labeled "7."
A) vagina
B) clitoris
C) greater vestibular gland
D) labium minus
E) labium majus
In ________, one substance is transported into the cell and another is transported out.
A) cotransport
B) ditransport
C) countertransport
D) protransport
E) throughtransport
An accumulation of lymph in a region where lymphatic drainage has been blocked is
called
A) lymphopenia.
B) lymphadenopathy.
C) lymphoma.
D) lymphedema.
E) lymphosis.
The fluid-filled cavity that appears in a secondary follicle is called the
A) corpus luteum.
B) cortex.
C) stroma.
D) antrum.
E) corpus albicans.
The pancreas has endocrine cells that produce hormones and ________ cells that
produce digestive enzymes.
A) mucosal
B) hepatic
C) gastric
D) smooth muscle
E) exocrine
The period during which an excitable membrane cannot respond to further stimulation
is the ________ period.
A) relative refractory
B) absolute refractory
C) resting
D) lag
E) stationary
Where in the spinal cord is the structure labeled "2" located?
Figure 15-1 Spinothalamic Tracts
A) anterior gray horns
B) dorsal root ganglion
C) anterior white column
D) anterior median fissure
E) posterior white column
An epithelial cell can be divided into two functional regions. They are the ________
and the basal surface.
A) apical
B) pinnacle
C) topical
D) crest
E) apogeal
The specific target cells of the thyroid hormones, thyroxine and triiodothyronine are
A) the cells of the parathyroid glands.
B) the cells of the pituitary gland.
C) all cells of the body.
D) the cells of the ovaries and testes.
E) the cells of the thymus gland.
A ________ is a smooth, grooved bone process shaped like a pulley.
A) tubercle
B) trochanter
C) trochlea
D) tuberosity
E) trabeculae
A ________ fracture is produced by twisting stresses applied to the bone.
A) comminuted
B) greenstick
C) compression
D) transverse
E) spiral
Antiangiogenesis factor is a chemical produced by ________ that blocks the growth of
blood vessels.
A) leukocytes
B) lymphocytes
C) chondrocytes
D) erythrocytes
E) mesenchymal cells
Identify the correct statement regarding people who are "double-jointed."
A) They are less likely to suffer from dislocations.
B) They have one or more weak joints.
C) They are probably male.
D) They have extra ligaments in their joints.
E) They have less range of motion.
The three major subdivisions of extracellular fluid found in the body are plasma,
interstitial fluid, and
A) synovial fluid.
B) urine.
C) sweat.
D) lymph.
E) serous fluid.
The medial end of the clavicle is also known as the ________ end.
A) acromial
B) sternal
C) coracoidal
D) manubrial
E) scapular
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