Exam Revision

Question 1

What are the body regions

Answer 1

Axial subdivision, appendicular subdivision, upper extremity and its subdivisions and the lower extremity and its subdivisions

Question 2

Which region contains the head neck and torso?

Answer 2

Axial

Question 3

Types of lipids

Answer 3

Triglycerides, phospholipids, prostaglandins and steroids

Question 4

Function of lipids

Answer 4

Energy source, structural role and integral part of cell membranes

Question 5

What are lipids?

Answer 5

Water insoluble organic molecules

Question 6

Which is the most abundant lipid and most concentrated source of energy?

Answer 6

Triglycerides

Question 7

Steroids

Answer 7

Cholesterol and cortisol, involved in many structural and functional roles

Question 8

Prostaglandins

Answer 8

“Tissue hormones” effects are many and varied, however they are released in response to a specific stimulus and are then inactivated

Question 9

Protein functions

Answer 9

Provide structure
Act as receptors
Provide energy
Catalyse chemical reactions
Transport substances in the blood
Communicate information to cells
Protection against pathogens

Question 10

Fibrous proteins

Answer 10

Long slender shape of muscle tissue, gives ability to contract and relax. Strong, durable and hydrophobic. Eg collagen

Question 11

Globular proteins

Answer 11

Globes or spheres that are highly reactive and hydrophilic. Eg haemoglobin and enzymes

Question 12

Types of polysaccharides

Answer 12

Starch, glycogen and cellulose

Question 13

Interstitial fluid

Answer 13

Interstitial fluid is the extracellular fluid not contained within blood vessels

Question 14

Endoplasmic reticulum

Answer 14

System of channels that function in transporting, synthesising and storing materials. Rough ER contains ribosomes which make proteins. Smooth ER makes phospholipids, steroid hormones, regulates concentration of Ca2+, metabolises some carbohydrates and breaks down some toxins

Question 15

Valves of heart

Answer 15

Tricuspid, bicuspid, aortic and pulmonary

Question 16

SA node

Answer 16

Initiates electrical signal in the walls of right atrium

Question 17

Intermodal tracts

Answer 17

Transmit signal through walls of RA

Question 18

Atrioventricular nose

Answer 18

Slowly conducting impulse as it passes through tough connective tissue within the interventricular septum

Question 19

AV bundle/bundle of His

Answer 19

Delays signal to allow atrium to contract prior to the ventricle

Question 20

Bundle branches (right and left)

Answer 20

Splits to send conducting impulses to both right and left ventricular walls

Question 21

Purkinje fibres

Answer 21

Terminate within cardiac tissue and spread the signal to apex, ventricular walls and papillary muscles

Question 22

P wave

Answer 22

Represents depolarisation of atria

Question 23

QRS complex

Answer 23

Represents depolarisation of ventricles and repolarisation of atria

Question 24

T wave

Answer 24

Represents repolarisation of ventricles