Nervous System Intro & Nerve Tissue

What is the label for 1

• Dendrites

• Cell body

• Myelin sheath

• Axon

Tags

NGSS.MS-LS1-2

Which of the following is the correct order of the direction of a message?

• Dendrite-Cell Body-Axon-Synapse
• Synapse-Cell Body-Axon-Dendrite
• Dendrite-Synapse-Cell Body-Axon
• Axon-Cell Body-Dendrite-Synapse

a signal molecule that transmits nerve impulses across synapses

• neuron
• neurotransmitter
• nerve
• action potential

What are the 2 major divisions of the peripheral nervous system (PNS)?

• Sensory & Motor
• Peripheral & Central
• Somatic & Autonomic
• Brain & Spinal Cord

What is the central nervous system (CNS) made of?

• brain and spinal cord
• brain and cranial nerves
• spinal cord and spinal nerves
• cranial nerves and spinal nerves

Peripheral Nervous System

• a specialized cell transmitting nerve impulses; a nerve cell

• Nerve tissues that control the activities of the body

• The nervous system outside the brain and spinal cord.

• Nerves connected to the brain.

• Nerves connected to the spinal cord.

What do neuroglia do?

• Release neurotransmitters
• Support and nourish neurons
• Release calcium to activate neurons
• Absorb nutrients from neurons

Somatic Nervous System

• Controls skeletal muscle contractions.

• Controls the bodily functions not consciously directed.

• A large round nucleus with a prominent nucleolus.

• nerve fiber, is a long, slender projection of a nerve cell

• Substance released by the nerve fiber by a nerve impulse.

Label the Neuron-What does the letter "H" represent?

• Myelin Sheath
• Axon
• Axon Terminal
• Dendrite

What is a nerve impulse?

• Your body's reaction to a certain event.

• An electric signal that passes through neurons.

• A message passed through the blood.

• Electrical signal created in the brain.

Tags

NGSS.HS-LS1-3