________ cells are the only T lymphocytes that can directly attack and kill other cells.
Fill in the blank(s) with the appropriate word(s).
Cytotoxic T
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The supraspinatus is named for its location on the posterior aspect of the scapula above the spine. What is its action?
A) to help hold the head of the humerus in the glenoid cavity and rotate the humerus laterally B) to stabilize the shoulder joint and help prevent downward location of the humerus and to assist in abduction C) to extend and medially rotate the humerus and to act as a synergist of the latissimus dorsi D) to flex and adduct the humerus and to act as a synergist of the pectoralis major
Select the correct statement about male sexual response.
A) Sympathetic impulses are responsible for causing penile arteriolar dilation, resulting in erection. B) Erection is the result of vascular spaces in the erectile tissues filling with blood. C) Expansion of the penile tissues results in dilation of the venous outflow. D) Ejaculation is the result of parasympathetic stimulation.
The period of gestation when the rudiments of all major organ systems are established is the ________ trimester
A) first B) second C) third
Which of the regions of a sarcomere contain titin?
a) the A band only b) the H zone only c) the zone of overlap only d) from M line to Z disc e) the I band only