Although the integument is a covering, it is by no means simple, and some of its functions include ________.


A) the dermis providing the major mechanical barrier to chemicals, water, and other external substances
B) resident macrophage-like cells whose function is to ingest antigenic invaders and present them to the immune system
C) cooling the body by increasing the action of sebaceous glands during high-temperature conditions
D) epidermal blood vessels serving as a blood reservoir


B) resident macrophage-like cells whose function is to ingest antigenic invaders and present them to the immune system

Anatomy & Physiology

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The radial and ulnar veins ultimately drain into the superior vena cava

Indicate whether the statement is true or false

Anatomy & Physiology

Individuals who are described as heterozygous have different

A. genotypes than the predominant genotype. B. genes for one trait on several chromosomes. C. alleles for a particular trait. D. parents who displayed two different phenotypes.

Anatomy & Physiology

A major source of sensory input into the limbic system is the sense of ________.

A. taste B. vision C. touch D. smell

Anatomy & Physiology

The presence of protein in the stomach stimulates the release of histamine, which in turn promotes HCl and pepsinogen secretion

Indicate whether the statement is true or false

Anatomy & Physiology