PAPER 1 - Anatomy And Physiology

Question 1

What does the vasomotor control centre do

Answer 1

Responsible for cardiac output distribution

Question 2

5 stages of conduction system

Answer 2

1) SA node generates electrical impulses and fires through atria walls
2) AV node collects impulses
3) bundle of his splits impulses in 2
4) bundle branches carry impulses to base of each ventricle
5) purkinje fibres distribute though ventricle walls

Question 3

What is vasomotor tone

Answer 3

The partial state of smooth muscle constriction in the arterial walls

Question 4

Define linear motion

Answer 4

Movement of a body through a string of curved line where all parts move the same distance in same direction over same amount of time

Question 5

How is linear force created

Answer 5

Through a direct force applied through the centre of mass

Question 6

What is displacement

Answer 6

The shortest route between the start and end point of a race

Question 7

How do you calculate velocity?

Answer 7

Displacement/ time taken

Question 8

How do you calculate speed

Answer 8

Distance / time taken

Question 9

How do you calculate acceleration

Answer 9

(Final velocity - initial velocity) / time taken

Question 10

How do you calculate force

Answer 10

Mass x acceleration

Question 11

What is the equation for cardiac output

Answer 11

Heart rate x stroke volume

Question 12

Unit of measurement for SV

Answer 12

L/M

Question 13

What is sub maximal exercise

Answer 13

Aerobic

Question 14

How does stroke volume change during aerobic exercise

Answer 14

Increase venous return = increase SV

Sv is dependant on VR

HR increases less time for heart to fill up with blood

Question 15

What is end diastolic volume

Answer 15

How much blood in heart after relaxation process

Question 16

What is cardiovascular drift

Answer 16

When there is an increase in heart rate but exercise intensity remains the same

Question 17

Why does cardiovascular drift happen

Answer 17

When you sweat, your body looses blood plasma so needs to work harder ( blood plasma carried rbc with oxygen to muscles)

Question 18

What does being on the energy continuum depend on

Answer 18

Intensity
Duration
Positions
Level of competition 
Motivated

Question 19

What is unit of measurement for velocity

Answer 19

M/S

Question 20

What is unit of measurement for acceleration

Answer 20

M/s2

Question 21

What is centre of mass

Answer 21

Point at which the body is balanced in all directions , post at which weight appears to act

Question 22

Factor that affect centre of mass

Answer 22

Line of gravity
Base of support
Lower centre of mass
Increase the area