Chapter 4 Textbook :)

Question 1

Nervous system

Answer 1

Communication network and control centre of the body - Brain, spinal cords & nerves

Question 2

Central nervous system - CNS

Answer 2

Brain and Spinal cord

Question 3

Peripheral nervous system - PNS

Answer 3

Nerves connect to the CNS with receptors, muscles and glands

Question 4

Cranium

Answer 4

Part of the skull that houses the brain

Question 5

Vertebral canal

Answer 5

Opening in the vertebrae to protect the spinal cord.

Question 6

Meninges

Answer 6

Connective tissues forming membranes

Question 7

Dura Mater

Answer 7

Outer meningeal layer - tough and durable. Provides layer of protection to brain - close to skull.

Question 8

Arachoid mater

Answer 8

Middle Meningeal layer - loose mesh of fibers (cobweb)

Question 9

Pia Mater

Answer 9

Inner Meningeal layer - Delicate and contians blood vessles and sticks to brain

Question 10

Cerebrospinal fluid - CSF

Answer 10

Occupies space between middle and inner layers of meninges, and also circulates through cavities in breain and through canal in spinal cord.

Question 11

Cerebrum

Answer 11

Largest part of the brain - contains grey matter, white matter and basal ganglia

Question 12

Grey matter / Cerebral cortex

Answer 12

Neron cell bodies, dendrites and anmyelinated axons.

Question 13

White matter.

Answer 13

Myelinated axons

Question 14

Grey matter under white

Answer 14

Additional grey matter called basal ganglia

Question 15

Convolutions / gyrus / gyri

Answer 15

Outer ridges in brain folds

Question 16

Sulci / Sulcus

Answer 16

Down folds in brain folds

Question 17

Fissures

Answer 17

Deep downfolds

Question 18

Longitudinal Fissure

Answer 18

Deepest, and almost separates cerebrum in two halves - l & r cerebral hemishpheres