Mobility

Question 0

All bones are hard rigid structures, what are they made of?

Answer 0

Living cells

Question 1

How many types of bones are there?

Answer 1

4 types:
1) long bones- take the weight. ie. femur 2) short bones- allow ease of movement. ie. fingers,toes… 3) flat bones- protect organs. ie. ribs, skull, pelvis 4) irregular bones- allow movement, flexibility, can bear some weight. ie. vertebrae

Question 2

Where are your blood cells made?

Answer 2

Inside the bone, were its mostly hollow (bone marrow)

Question 3

There are 3 types of joints, what are they?

Answer 3

1) hinge joint- movement in one direction. ie. elbow, knee. 2) pivot joint- allows side to side movement- were the skull connects to the spine. ie. neck 3) ball & socket joint- round on one end of the other. ie. hip, shoulder

Question 4

What is Cartilage?

Answer 4

Connective tissue that cushions the joint so the bones don’t rub together.

Question 5

Synovial membrane & secretions what?

Answer 5

Lines the joints and secretes the synovial fluid, this provides ease of movement.

Question 6

What holds a joint together?

Answer 6

Strong band of connective tissue that holds the joints together, called a ligament.

Question 7

How many muscles are there in a human body?

Answer 7

There are more than 500

Question 8

Name the 3 kinds of muscles.

Answer 8

1) Voluntary- you are controlling these. ie. arms, legs 2) Involuntary- work automatically. organ muscles
3) Cardiac- can only be found in the heart

Question 9

What are the 3 important functions muscles provide?

Answer 9

1) move your body
2) provide support/ posture
3) provides body heat

Question 10

This consists the brain & spinal cord, there are two divisions.

Answer 10

Nervous system.

1) central nervous system- CNS
2) peripheral nervous system- PNS

Question 11

There are two halves of the brain, what side controls which side?

Answer 11

Rt side is responsible for the Lt side movement

Lt side is responsible for the Rt movement

Question 12

Outside of cerebrum (outer layer), is what, which controls what high functions of the brain?

Answer 12

The cerebral cortex.

• reasoning - vision
• memory - hearing
• speech - sensation
• voluntary muscles

Question 13

What does the Cerebellum do?

Answer 13

Co- ordinates & regulates body movement, balance. If injured it can result in jerky movement and loss of co- ordination.

Question 14

The brain stem is responsible for what?

Answer 14

Basic vital life functions, it connects cerebrum to the spinal cord.
- contains, mid brain, pons, medulla

Question 15

What does the mid brain & pons do?

Answer 15

Relay messages b/w medulla & cerebrum.

Question 16

What does the medulla control?

Answer 16

HR, breathing, swallowing, coughing and vomitting

Question 17

How long is the spinal and what’s it contain?

Answer 17

It’s 45cm long, contains pathways that conduct messages to and from the brain

Question 18

Whats the definition of Meninges, Dura matter, Pia matter, Arachoid?

Answer 18

Meninges- connective tissue that covers the brain and spinal fluid
Dura matter- tough outer layer next to the skull
Pia matter- middle layer } cerebrospinal fluid
Arachoid- inner layer } protects & cushions from shock. csf

Question 19

What does PNS stand for?

Answer 19

Peripheral Nervous system.

Question 20

How many parts of cranial nerves and spinal cords are there?

Answer 20

12 cn, 31 sc

Question 21

Cranial nerves do what?

Answer 21

Conduct impulses b/w brain, head, neck, chest. Also smell, sight, hearing, pain, touch & temp

Question 22

What kind of things happen when your sympathetic- fight or flight?

Answer 22

heart races, pupils dilate, increase BP, muscles tense, nervous/ shaking, adrenaline, sweaty palms, emotional

Question 23

What happens when your parasympathetic- rest & recovery?

Answer 23

Calm breathing, BP and pulse regulate, pupils contract

Question 24

What are the 3 layers of the eye?

Answer 24

Sclera- white part of your eye, tough connective tissue includes cornea
Choroid- blood vessels, cilary, muscles, iris (colour) contain pupil
Retina- inner layers, vision receptors fluid b/w cornea & lens- aqueous humor- behind lens is vitreaus humor- a jelly like substance that keeps the shape of the eye.

Question 25

The hearing assist with what and has how many parts?

Answer 25

It assist with balance and has 3 parts.
a) External- called the pinna, sound waves are guided by the outer ear and into the auditory canal (2.5cm)
Eardrum (tympanic membrane) separates the external and middle ear
b) Middle ear- small space that contains eustachian tubes (connects middle ear & throat) - air enters the esustachian tubes and regulates the pressure on the eardrum
c) inner ear- canals that are semi- circular, called cochlea- contains fluid, carry’s sound waves & regulates balance, senses that position of the head

Question 26

What are the 4 receptors on your tongue and where are they?

Answer 26

1) bitter - at the back
2) sweet - front
3) salty - front sides
4) sour - back sides

Question 27

What are the 5 senses?

Answer 27

Sight, hearing, taste, smell, touch