The chemical messengers released into the spatial junctions between neurons are called

a. hormones.
b. motor neurons.
c. neurotransmitters.
d. sensory neurons.
e. synapses.


Ans: c. neurotransmitters.

Anatomy & Physiology

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Local control of blood flow

A. occurs because of contraction or relaxation of precapillary sphincters. B. causes precapillary sphincters to contract when carbon dioxide levels decrease in tissue spaces. C. causes an increase in blood flow when oxygen levels increase in tissue spaces. D. Occurs because of contraction or relaxation of precapillary sphincters and causes an increase in blood . flow when oxygen levels increase in tissue spaces are both true statements. E. All of these are true statements.

Anatomy & Physiology

Because of its weight-bearing capacity, the ________ spine is especially susceptible to injury.

A) cervical B) thoracic C) lumbar D) coccygeal

Anatomy & Physiology

Adrenaline is also known as epinephrine

Indicate whether the statement is true or false

Anatomy & Physiology

Define keratin

What will be an ideal response?

Anatomy & Physiology