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Successive vertebrae articulate at facets on the inferior articular processes of the
superior vertebra and facets on the ________ of the adjacent inferior vertebrae.
A) dens
B) pedicles
C) lamellae
D) transverse processes
E) superior articular processes
The enzyme ________ is required for the synthesis of mRNA.
A) RNA polymerase
B) deoxyribase
C) phosphatase
D) RNA synthetase
E) ribase
The common carotid artery divides to form the ________ and ________ carotid
arteries.
A) superficial; deep
B) medial; lateral
C) inner; outer
D) superior; inferior
E) internal; external
Figure 21-2 Veins
Identify the vein labeled "15."
A) axillary
B) brachial
C) radial
D) basilic
E) ulnar
The ________ allow for a wide range of head movements.
A) hyoid bones
B) temporomandibular joints
C) cervical vertebrae
D) intervertebral discs
E) occipital condyles
Interstitial cells produce
A) sperm.
B) inhibin.
C) nutrients.
D) testosterone.
E) androgen-binding protein.
The blood vessel that branches from the subclavian artery to supply the anterior wall of
the chest is the
A) internal thoracic.
B) azygos artery.
C) mediastinal artery.
D) thoracic aorta.
E) vertebral artery.
The color distinction between white fat and brown fat exists because brown fat
A) includes active melanocytes.
B) is more superficial.
C) traps pollutants.
D) is highly vascular.
E) is more mature.
Adipose tissue is a major component of the region labeled
A) 1.
B) 2.
C) 3.
D) 4.
E) 5.
Antigens that trigger allergic reactions are called
A) interferons.
B) microbes.
C) pyrogens.
D) allergens.
E) agglutinins.
