Why are functions of T-lymphocytes referred to as "cell-mediated" immunity?

A.   Because T-lymphocytes are cells and not just plasma proteins
B.   Because T-lymphocytes work against antigens associated with cells
C.   Because T-lymphocytes work only against single-celled infectious agents
D.   Because T-lymphocytes must activate other classes of cells in order to have any effect


B

Anatomy & Physiology

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All receptors for ________ are confined to the head and are innervated by cranial nerves.

A. the somesthetic senses B. exteroception C. proprioception D. chemoreception E. the special senses

Anatomy & Physiology

Which skull canal contains branches of the trigeminal nerve?

A. Carotid canal B. Foramen ovale C. Jugular foramen D. Nasolacrimal canal E. External auditory canal

Anatomy & Physiology

Answer the following statements true (T) or false (F)

1. The skin composes about 6% of the body weight. 2. The glue-like basement membrane connects the connective tissue membrane to the underlying structures. 3. The parietal and visceral pleurae are actually two parts of a single, continuous membrane. 4. A possible serious complication of an infected appendix is pleurisy. 5. Keratin is a tough, waterproof protein that fills cells of the stratum corneum.

Anatomy & Physiology

The genotype WW is best described as ________.

A. homozygous recessive B. heterozygous dominant C. heterozygous recessive D. homozygous dominant E. homorecessive

Anatomy & Physiology