Endorphins and enkephalins

a. are endogenous morphine-like substances
b. are important in the body's natural analgesic system
c. stimulate the release of substance P by binding with opiate receptors
d. exhibit both a and b characteristics
e. exhibit both a and c characteristics


D

Anatomy & Physiology

You might also like to view...

Explain why sunburned skin peels rather than being shed as a powder

Anatomy & Physiology

The folds of the surface of the cerebellum

A) are called folia and are less prominent than the cerebral folds. B) form a network of blood vessels over the brain. C) consist of axons and dendrites of neurons. D) are bathed in spinal fluid. E) are called sulci.

Anatomy & Physiology

During excitation-contraction coupling,

a. the action potential travels down the T tubules b. Ca2+ is released from the sarcoplasmic reticulum c. Ca2+ is taken up by the sarcoplasmic reticulum d. both a and b occur e. both a and c occur

Anatomy & Physiology

Name and briefly define the four routes by which heat is transferred between an animal and its environment

What will be an ideal response?

Anatomy & Physiology