Which cell is considered to be the most important cell in the immune system?

a) Cytotoxic T Cells
b) B lymphocytes
c) T Helper cells
d) Eosinophils
e) macrophages


c

Anatomy & Physiology

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Elastic cartilage is found

A) between vertebrae. B) in the knee joint. C) in the nose. D) in the ear. E) in the ribcage.

Anatomy & Physiology

Which of the following best explains how the phenomenon of "tolerance" develops with use of psychoactive drugs over time?

A. Psychoactive drugs can up-regulate receptors for endogenous neurotransmitters. B. Psychoactive drugs can inhibit production of endogenous neurotransmitters. C. Psychoactive drugs often produce euphoria. D. Psychoactive drugs can alter blood flow to the brain. E. Psychoactive drugs can cross the blood-brain barrier.

Anatomy & Physiology

Cytotoxic T cells destroy their target cells by releasing perforin, which cuts holes in

A) lysosomes. B) cell membranes. C) ribosomes. D) DNA molecules.

Anatomy & Physiology

Identify structure "D" on the neuron.

A. Schwann cell B. Axon C. Dendrites D. Neuron cell body (soma) E. Node of Ranvier

Anatomy & Physiology