Which fo the following is not true about helper t-cells?

A) They have CD4 receptors
B) They do not participate in direct cell killing
C) They can stimulate the proliferation of other t-cells and B-cells that have bound to their antigens
D) They can stimulate the activity of Natural Killer Cells
E) All of the above


Answer: E) All of the above

Anatomy & Physiology

You might also like to view...

What is the primary effect of a decrease in the hematocrit of elderly individuals?

a. reduction in the maximum cardiac output b. damage to ventricular cardiac muscle fibers c. lowering of the oxygen-carrying capacity of the blood d. thrombus formation in the blood vessels

Anatomy & Physiology

A ________ is a partial or complete dislocation of the acromioclavicular joint.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

Which of the following hormones is the cause of most puberty-related changes in a female?

A) estrogen B) progesterone C) oxytocin D) relaxin E) chorionic gonadotropin

Anatomy & Physiology

The medullary inspiratory neurons receive inhibitory neural input from the pons and also from pulmonary stretch receptors

Indicate whether the statement is true or false.

Anatomy & Physiology