Binding of norepinephrine (NE) to an alpha-adrenergic receptor is usually excitatory, and binding to a beta-adrenergic receptor is usually inhibitory

Indicate whether the statement is true or false


TRUE

Anatomy & Physiology

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Most brain tumors of neural origin consist of glial cells

Indicate whether the statement is true or false

Anatomy & Physiology

Shortly after ovulation,

A. the granulosa cells become corpus luteum cells. B. estrogen increases but progesterone decreases. C. the level of LH rises even more than before ovulation. D. GnRH receptors upregulate. E. corpus luteum degenerates.

Anatomy & Physiology

In humans, only ________ cells have flagella.

A) sperm B) intestine lining C) uterine tube lining D) stomach lining E) respiratory tract lining

Anatomy & Physiology

Lymphocytes that attack foreign cells or body cells infected with viruses are ________.

A) suppressor T cells. B) B lymphocytes. C) plasma cells. D) cytotoxic T cells. E) helper T cells.

Anatomy & Physiology