Question

organization of the nervous system a. choose the key responses that best correspond to the descriptions provided in the following statements. insert the appropriate letter or term in the answer blanks. key choices a. autonomic nervous system c. peripheral nervous system b. central nervous system d. somatic nervous system ____ 1. nervous system subdivision that is composed of the brain and spinal cord. __ 2. subdivision of the pns that controls voluntary activities such as the activation of skeletal muscles. __ 3. nervous system subdivision that is composed of the cranial and spinal nerves and ganglia. __ 4. subdivision of the pns that regulates the activities of the heart and smooth muscle, and of glands; it is also called the involuntary nervous system. __ 5. a major subdivision of the nervous system that interprets incoming information and issues orders. __ 6. a major subdivision of the nervous system that serves as communication lines, linking all parts of the body to the cns. nervous tissue—structure and function 3. this exercise emphasizes the difference between neurons and neuroglia. indicate which cell type is identified by the following descriptions. insert the appropriate letter or term in the answer blanks. key choices a. neurons b. neuroglia __ 1. support, insulate, and protect cells __ 2. demonstrate irritability and conductivity, and thus transmit electrical messages from one area of the body to another area __ 3. release neurotransmitters __ 4. are amitotic ____ 5. able to divide; therefore are responsible for most brain neoplasms

Explanation:

Part 1: Organization of the Nervous System

1.

The Central Nervous System (CNS) consists of the brain and spinal cord.

The Somatic Nervous System (part of PNS) controls voluntary activities like skeletal muscle activation.

The Peripheral Nervous System (PNS) includes cranial/spinal nerves and ganglia.

Answer:

B. Central nervous system

2.