Nervous System and Neuron

division of the nervous system responsible for involuntary activity of cardiac muscle, smooth muscle, and glands

• Somatic

• Autonomic

Which of the following is NOT a function of the autonomic nervous system?

• regulating leg muscle contractions during walking

• controlling muscle movements in the stomach that push food through

• regulating heart rate and respiration rate

• controlling contraction of the arrector pili muscles (goosebumps) in the skin

Tags

NGSS.HS-LS1-3

Why do people get sleepy after eating a big meal?

• The sugar from food stimulates the sympathetic nervous system.

• Digestion is increased by the parasympathetic nervous system, which also relaxes the body.

• The body needs to maintain homeostasis of blood sugar concentration, so the body shuts down.

• The body switches over to the parasympathetic system because the sympathetic system has been active for too long.

Tags

NGSS.HS-LS1-3

This releases neurotransmitters which are sent into the synaptic cleft for receptors on the dendrite to taste

• axon

• axon terminal

• gene

• neuron

Which is represented by the letter E?

• Axon

• Myelin sheath

• schwan cells

• terminal branches

What is the basic building block of the nervous system?

• Scanning

• Neuron

• Alert

• Receptor

Which component of a neuron consists of the cytoplasm and the nucleus?

• Cytoplasm

• Nucleus

• Dendrites

• Axon

Tags

NGSS.MS-LS1-2

What is the function of dendrites in a neuron?

• Receive impulses from receptors

• Process information

• Transmit messages to the brain

• Protective sheath

What is the insulating and protective sheath called in an axon?

• Cytoplasm

• Nucleus

• Myelin sheath

• Dendrites

Where are the impulses finally delivered in the nervous system?

• Cell body

• Axon

• Synapse

• Brain or spinal cord