Nervous system

Question 1

What is the nervous system?

Answer 1

The network of nerve cells and fibres which transmits nerve impulses throughout the body.

Question 2

The nervous system is made up of:

Answer 2

• brain
• Spinal cord
• All the nerves of the body

Question 3

Functions of the Nervous System:

Answer 3

• Memory/ learning
• Voluntary control movement
• Stimulates every tissue and organ within the body

Question 4

2 Main parts of the nervous system:

Answer 4

• Central nervous system

- Peripheral nervous system

Question 5

The Central Nervous System is composed of:

Answer 5

The brain and the spinal cord

Question 6

The function of the Central Nervous System:

Answer 6

• Control boy movements
• Information Processing
  ( The brain control mostly everything )

Question 7

2 kind of tissue in the CNS:

Answer 7

Grey and white matter

Question 8

Grey Matter

Answer 8

Home to neural cell bodies, axon terminals, and dendrites, as well as all nerve synapses. Located on the surface of the brain.

Question 9

White matter

Answer 9

Composed of myelinated axons. Located in the inner layer of the brain’s cortex.

Question 10

The function of the white matter:

Answer 10

Conduct, process, and send nerve signals up and down the spinal cord.

Question 11

The function of the grey matter:

Answer 11

Process info in the brain

Question 12

What’s the Peripheral Nervous System?

Answer 12

Nervous system outside of the brain and the spinal cord (CNS).

Question 13

The Peripheral Nervous System is composed of:

Answer 13

The cranial nerves (nerves of the head) and spinal nerves.

Question 14

The function of the PNS:

Answer 14

Serves as the communication system between the body and the CNS.

Question 15

The function of the brain:

Answer 15

• Maintaining Homeostasis
• Interpreting sensory info
• Creating motor responses( movement )
• Learning
• Thinking
• Talking, etc.

Question 16

Brain Components:

Answer 16

• Forebrain “Prosencephalon”
• Hindbrain “Rhombencephalon”
• Cerebrum
• Brainstem
• Midbrain”Mesencephalon”
• Pons
• Medulla Oblongata
• Cerebellum
• Myelin Sheath
• Sulci and Gyri

Question 17

Region of the developing vertebrate brain.; It has 2 major parts; the telencephalon, which contains the cerebral hemispheres, the diencephalon, which contains the thalamus, hypothalamus, epithalamus, and subthalamus.

Answer 17

Forbrain “Prosencephalon”

Question 18

Region of the developing vertebrate brain that is composed of the medulla oblongata, the pons, and the cerebellum.

Answer 18

Hindbrain “Rhombencephalon”-

Question 19

The largest part of the brain. It contains the right and left hemispheres called the Cerebral hemispheres. The two hemispheres are divided by a groove called the interhemispheric fissure or “longitudinal fissure.”

Answer 19

Cerebrum

Question 20

The hemispheres of the cerebrum are divided into lobes:

Answer 20

Frontal, Parietal, Temporal, and Occipital lobes.

Question 21

The distal part of the brain that is made up of the midbrain, pons, and medulla oblongata. It connects the cerebrum to the spinal cord. One of the most important parts of the entire CNS.

Answer 21

Brainstem

Question 22

Bundle of nerve tissue that connects the left and right hemispheres of the brain.

• Contains over 200 million axons
• Allows the hemispheres to communicate and send signals to each other.

Answer 22

Corpus Callosum

Question 23

The small central part of the brainstem.

Connects the hindbrain and the forebrain. Composed of the tectum and tegmentum.

Answer 23

Midbrain “Mesencephalon”

Question 24

Part of the brainstem that links the medulla oblongata and the thalamus.
Sits directly above the medulla oblongata. Lies between the midbrain and medulla.

Answer 24

Pons

Question 25

Located at the base of the brain, where the brain stem connects the brain to your spinal cord.

Answer 25

Medulla Oblongata “Medulla”