The only direct connection between the pectoral girdle and the axial skeleton is where the
A) clavicle articulates with the humerus.
B) clavicle articulates with the manubrium of the sternum.
C) coxal bones articulate with the femur.
D) vertebral column articulates with the sacrum.
E) clavicle articulates with the xiphoid process.
B
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Which cells become immunocompetent due to thymic hormones?
A) basophils B) lymphocytes C) macrophages D) monocytes
Explain the relationship between load and speed of muscle contraction
A) The greater the load on a muscle, the longer it takes for the muscle to shorten, and the less it shortens. B) The greater the load on a muscle, the longer it takes for the muscle to shorten, and the more it shortens. C) The greater the load on a muscle, the less time it takes for the muscle to shorten, and the less it shortens. D) The greater the load on a muscle, the less time it takes for the muscle to shorten, and the more it shortens. E) There is no relationship between load and speed of muscle contraction.
Describe the arbor vitae, including its makeup, location, and function
A) The arbor vitae is white matter of the cerebellum that connects the cerebellum with the midbrain, diencephalon, and cerebrum. B) The arbor vitae is white matter of the cerebellum that carries communications between the cerebellum and pons. C) The arbor vitae is white matter of the cerebellum that links the cerebellum with the medulla oblongata and spinal cord. D) The arbor vitae is gray matter of the cerebellum that interconnects pontine nuclei with the opposite cerebellar hemisphere. E) The arbor vitae is white matter of the cerebellum that connects the cerebellar cortex and nuclei with cerebellar peduncles.
Which of these events occur when a person steps on a tack with their right foot?
A) The right foot is pulled away from the tack because of the Golgi tendon reflex. B) The left leg is extended to support the body because of the stretch reflex. C) The flexor muscles of the thigh contract, and the extensor muscles relax because of reciprocal innervation. D) The extensor muscles of both thighs contract because of the crossed extensor reflex. E) all of these