HOmeostasis review

Which part of the neuron receives incoming signals?

• Axon

• Dendrite

• Myelin sheath

• Node of Ranvier

The function of the myelin sheath is to:

• Protect the brain from injury

• Transmit hormones

• Speed up nerve impulse transmission

• Produce neurotransmitters

Which division of the nervous system controls voluntary muscles?

• Autonomic

• Sympathetic

• Parasympathetic

• Somatic

What type of neuron carries impulses from receptors to the CNS?

• Motor

• Interneuron

• Sensory

• Relay

The synapse is:

• The insulating layer on a neuron

• A gap between two neurons

• The chemical messenger

• The part of the brain controlling balance

Which neurotransmitter is primarily involved in muscle contraction?

• Serotonin

• Dopamine

• Acetylcholine

• Epinephrine

What is the function of the medulla oblongata?

• Memory processing

• Voluntary movement

• Coordination

• Regulating heart rate and breathing

Which structure controls homeostasis in the brain?

• Cerebrum

• Cerebellum

• Medulla

• Hypothalamus

Reflex actions are:

• Voluntary and slow

• Involuntary and fast

• Controlled by the cerebellum

• Hormone-based reactions

A disruption in the transmission of impulses in the central nervous system may be caused by:

• Excess water in the blood

• Damage to the myelin sheath

• Too much glucose

• Low calcium levels