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Which ascending tract carries the sensations for fine touch and vibration?
Figure 15-1 Spinothalamic Tracts
A) corticobulbar
B) corticospinal
C) posterior (dorsal) column
D) spinothalamic
E) spinobulbar
Two large venous sinuses, the sagittal sinuses, lie within a dural fold called the
A) cerebral aqueduct.
B) basal ganglia.
C) falx cerebri.
D) arachnoid mater.
E) septum pellucidum.
Which event occurs during ventricular systole?
A) closing of the bicuspid and tricuspid valves
B) closing of the semilunar valves
C) the second heart sound
D) release of an action potential from the sinoatrial node
E) expansion of the ventricles
Epithelium is connected to underlying connective tissue by
A) keratin.
B) interfacial canals.
C) a basement membrane.
D) a reticular lamina.
E) proteoglycan.
The combination of fibers and ground substance in supporting connective tissues is
known as
A) collagen.
B) cartilage.
C) chondroitin.
D) matrix.
E) scaffold.
A normal sperm count ranges from approximately ________ spermatozoa per milliliter.
A) 10 million
B) 100-150 million
C) 1-2 million
D) 500 million
E) 20-100 million
The dominant cerebral hemisphere of the brain
A) is for emotional status.
B) is for interpretation of art and music.
C) performs analytical tasks.
D) controls vital functions such as blood pressure and heart rate.
E) controls emotions.
The direct interconnection of two arteries is called an arterial
A) collateral.
B) anastomosis.
C) unification.
D) merger.
E) portal.
________ nerves are nerves that connect to the spinal cord.
A) Spinal
B) Cranial
C) Afferent
D) Multipolar
E) Autonomic
Figure 21-1 Arteries
Identify the artery labeled "1."
A) axillary
B) brachiocephalic trunk
C) common carotid
D) ascending aorta
E) brachial
Damage to a bone because of extreme load, sudden impact, or stresses applied from an
unusual direction is called a
A) dislocation.
B) contortion.
C) rupture.
D) fragmentation.
E) fracture.
Heat loss to the cooler air that moves across the surface of your body is called
A) radiation.
B) conduction.
C) convection.
D) evaporation.
E) transmission.
A(n) ________ reflex has at least one interneuron placed between the sensory and
motor neurons.
A) monosynaptic
B) ipsilateral
C) commensual
D) involuntary
E) polysynaptic
The thoracic duct drains lymph from all of the following regions except the
A) right knee.
B) right breast.
C) left arm and shoulder.
D) pelvic viscera.
E) right knee and the right breast.
