Brain and spinal cord

The diagram below shows a human brain as seen from the side.

Name the parts labelled A, B, and C

• A-cerebellum ;

  B - medulla oblongata;

  C - cerebrum

• A-cerebellum ;

  B - cerebrum;

  C - medulla oblongata

• A-cerebrum;

  B - medulla oblongata; C - cerebellum

• A-medulla oblongata ;

  B - cerebrum;

  C - cerebellum.

Answer explanation

Identify what numbers labelled central canal, grey matter and white matter of spinal cord.

• 3, 2, 4

• 1, 2, 4

• 3, 4, 5

• 5, 2, 3

Answer explanation

Determine which function does not perform part A

• Conscious through, also learning, memory and reasoning

• Interpretation of sensory information on the basis of past experience

• Initiation movement by skeletal muscles

• Regulates breathing

Determine function of part B

• Controls involuntary actions such as swallowing and coughing

• Control of osmoregulation

• Perception of pleasure and pain

• Links higher brain regions to medulla oblongata

Determine function of part C

• Control of body temperature

• Controls muscular movement and coordination

• Links higher brain regions to medulla oblongata

• Contains centres for control breathing rate and heart rate blood pressure

Tags

NGSS.HS-LS1-3

The outer 3mm of the hemispheres, the cerebral cortex is possibly the most complex region of the brain. It consists of many association areas, whose function is to allow an individual to interpret information on the basis of previous experience.

Define region of the brain and their function.

• Frontal lobe-speech, motor cortex;

  Parietal lobe

  -touch, pressure, taste;

  Temporal lobe

  -hearing, memory;

  Occipital lobe

  -vision.

• Frontal lobe-reading, language;

  Parietal lobe

  -smell, taste;

  Temporal lobe

  -concentration, problem solving;

  Occipital lobe

  -reading, vision.

• Frontal lobe-hearing, memory;

  Parietal lobe

  -attention, decision making;

  Temporal lobe

  - speech, coordination

  Occipital lobe

  -smell, taste.

• Frontal lobe-smell, taste ;

  Parietal lobe

  - reading, vision.;

  Temporal lobe

  - reading, language;

  Occipital lobe

  - concentration, problem solving;

Answer explanation

Identify what numbers labelled dorsal root ganglion, sensory nerve, motor nerve and ventral root of spinal cord.

• 7, 4, 5, 6

• 1, 2, 7, 5

• 1, 5, 6, 7

• 5, 6, 7, 2

Answer explanation

Main function of the spinal cord

• Signals from brain to other body parts control movements

• Signals from other parts of body help brain record and process sensations like pressure or pain

• Manage reflexes

• all answers are correct