Physiology

Question 1

What are the main bones in the body.

Answer 1

Skull,sternum,rib,spine, femur , tibia , patella , radius , ulna ,humerus.

Question 2

What r the major muscles in the body?

Answer 2

Biceps, triceps, quadriceps, hamstrings, calf muscles.

Question 3

What is the difference between respiration and breathing?

Answer 3

Respiration is a chemical reaction that occurs in every living cell but breathing in a physical reaction as things move.

Question 4

What is the prosses of breathing

Answer 4

The diaphragm moves down the intercostal muscles pull the ribs up and out pressure is low now. Diaphragm then goes up and the intercostal muscles pull the ribs down and in lungs deflate.

Question 5

What are the composition of inhaled air in terms of oxygen, carbon dioxide and nitrogen.

Answer 5

Oxygen 21% carbon dioxide 0.04% nitrogen 78% and other gases 1%

Question 6

What does plasma contain

Answer 6

Dissolved substances

Question 7

What is the function for white blood cells and platelets?

Answer 7

White blood cells fight disease and make antibodies and platelets help with blood clotting and stops bleeding by forming a scab.

Question 8

Why does heart rate increases during exercise?

Answer 8

It’s because the muscles need more oxygen through the blood so they can work harder so the heart pumps the blood quicker to get more blood to the muscles.

Question 9

What are the two types of joints in a human?

Answer 9

Hinge joint and Ball and socket joint

Question 10

Where can a ball and socket be in a human

Answer 10

The pelvis / hip

Question 11

Where can a hinge joint be in a human

Answer 11

The arms and legs.

Question 12

What are the four functions of the skeleton?

Answer 12

Protection, shape , movement, blood cell production.

Question 13

What are is the word equation for aerobic respiration?

Answer 13

Oxygen add glucose—> carbon dioxide add water.

Question 14

What does blood contain?

Answer 14

Red blood cells, white blood cells, platelets and plasma.

Question 15

How do antagonistic muscles work?

Answer 15

One muscle contract to move the bone and the other relaxes and then contracts to move the bone back so that would help us move but only one muscle can’t move the bone back individually so they work in pairs which are antagonistic muscles.

Question 16

What are red blood cells adaptations

Answer 16

They are packed full of haemaglobin which is the protein that combines with the oxygen. It doesn’t have a nucleus as it would take up to much room. Flexible so it can squeeze through tiny capillaries. Biconcave shape to have a larger surface area so oxygen can differ in.

Question 17

What is the word equation for anaerobic respiration

Answer 17

Glucose-> lactic acid

Question 18

What is the competition of the air we exhale with oxygen, carbon dioxide and nitrogen.in %

Answer 18

Oxygen = 16 carbon dioxide = 4 nitrogen = 78

Question 19

Give 1 example for each or the functions of the skeleton.

Answer 19

Protection= the ribs protecting the lungs Movement= muscles can pull on bones Blood cell production= the inner part of some bones make blood cells

Question 20

Where does hr co and sv go on the triangle

Answer 20

Co at the top and sv on the left bottom and hr on the right bottom.

Question 21

What is the difference between breathing and respiration

Answer 21

Respiration is the chemical prosses which takes place in every cell but breathing is a physical reaction that happens in the lungs

Question 22

What is in the structure of the thorax involved in breathing:

Answer 22

Trachea, bronchi, bronchioles,alveoli, ribs,diaphragm, intercostal muscles

Question 23

What does blood consist

Answer 23

Red blood cells, white blood cells, platelets, plasma

Question 24

How do agonistic muscles work

Answer 24

One muscle contracts and gets shorter and thicker the other muscles is relaxed so its lengthens therefore moving the muscle