Master A&P Quiz 3 - Nervous System

Questions and Answers

The ________ nervous system is composed of the brain and spinal cord.

central

________ nerves are nerves that connect to the spinal cord.

spinal

In an adult, the conus medullaris is found at about

The ________ separates the dura mater from the walls of the vertebral canal.

epidural space Signup and view all the answers

What is the term for the type of nerve that connects to the spinal cord?

sciatic Signup and view all the answers

The subdural space lies between

the dura mater and the arachnoid mater Signup and view all the answers

The is part of the central nervous system (CNS) and the is part of the peripheral nervous system (PNS).

spinal cord; spinal nerve Signup and view all the answers

Which of the following is not a function of cerebrospinal fluid?

provides ATP for impulse transmission Signup and view all the answers

________ nerves are nerves that connect to the brain.

Cranial Signup and view all the answers

The tough, fibrous, outermost covering of the spinal cord is the

dura mater Signup and view all the answers

The third and fourth ventricles are linked by a slender canal designated as the

cerebral aqueduct Signup and view all the answers

The nervous tissue outside of the central nervous system composes the ________ nervous system.

peripheral Signup and view all the answers

What structure is covered by many blood vessels and adheres tightly to the surface of the brain?

pia mater Signup and view all the answers

The specialized membranes that surround the spinal cord are termed the

spinal meninges Signup and view all the answers

The ventricle associated with the pons and upper medulla is the

fourth Signup and view all the answers

Cerebrospinal fluid flows within the

subarachnoid space. Signup and view all the answers

The layer of the meninges in direct contact with the spinal cord is the

pia mater Signup and view all the answers

Chambers within the brain that contain cerebrospinal fluid are called

ventricles Signup and view all the answers

The thin partition that separates the first and second ventricles is the

septum pellucidum. Signup and view all the answers

What is the term for the structure that regulates various autonomic functions?

hypothalamus Signup and view all the answers

What gland secretes melatonin?

pineal gland Signup and view all the answers

What canal connects the third and fourth ventricles?

cerebral aqueduct Signup and view all the answers

What structure is located at the brainstem and connects various parts of the brain?

pons Signup and view all the answers

What part of the brain includes the thalamus and hypothalamus?

diencephalon Signup and view all the answers

What structure connects the left and right cerebral hemispheres?

corpus callosum Signup and view all the answers

The two cerebral hemispheres are separated by the

longitudinal fissure Signup and view all the answers

A neural cortex is found on the surface of the

cerebrum Signup and view all the answers

Which of these is not one of the main divisions of the adult brain?

prosencephalon Signup and view all the answers

The medulla oblongata, pons, and midbrain comprise the

brain stem Signup and view all the answers

Study Notes

Nervous System Overview

The central nervous system (CNS) includes the brain and spinal cord.
The peripheral nervous system (PNS) consists of nerves that connect to the spinal cord (spinal nerves) and brain (cranial nerves).

Spinal Anatomy

The conus medullaris in adults is located around the L1 vertebra.
The epidural space is the area that separates the dura mater from the vertebral canal.
The dura mater serves as the tough, fibrous outermost covering of the spinal cord.
Pia mater is the delicate layer directly adhering to the brain surface, rich in blood vessels.

Cerebrospinal Fluid (CSF)

CSF flows in the subarachnoid space and surrounds the spinal cord.
The primary role of CSF is to cushion the brain and spinal cord; it does not provide ATP for impulse transmission.
Ventricles within the brain contain CSF; the fourth ventricle is found near the pons and upper medulla.
The slender canal connecting the third and fourth ventricles is called the cerebral aqueduct.

Meninges and Spaces

The spinal meninges consist of three membranes encompassing the spinal cord: dura mater, arachnoid mater, and pia mater.
The subdural space lies between the dura mater and arachnoid mater.

Brain Structure

The longitudinal fissure separates the two cerebral hemispheres.
The neural cortex is the surface layer of the cerebrum.
The diencephalon is one of the major divisions of the brain, distinct from the prosencephalon, which is not considered one of the main divisions.
The brain stem consists of the medulla oblongata, pons, and midbrain.

Key Brain Components

The corpus callosum connects the cerebral hemispheres, facilitating communication.
The hypothalamus plays a crucial role in maintaining homeostasis and regulating various bodily functions.
The pineal gland is involved in the regulation of sleep-wake cycles and produces melatonin.
The term "pons" refers to a structure in the brainstem that connects different parts of the nervous system.

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Description

Test your knowledge on the anatomy and physiology of the nervous system with this quiz! Covering essential concepts, this quiz focuses on critical components such as the central nervous system and spinal nerves. Perfect for students studying anatomy & physiology.