Quiz questions

Question 1

What is the life span of a red blood cell

Answer 1

120 days

Question 2

Which blood cell can be described as being a biconcave disc?

Answer 2

Erythrocyte

Question 3

Which dietary components are needed for DNA synthesis, and thus greatly influence the production of red blood cells?

Answer 3

b12 and folate

Question 4

The part of the haemoglobin molecule that directly interacts with oxygen is:

Answer 4

Iron ion

Question 5

What would happen to red blood cells if the haem group were removed from haemoglobin?

Answer 5

Red blood cells would not be able to bind oxygen

Question 6

What is the definition of the cardiac cycle?

Answer 6

It is a sequence of event that occurs during one complete heartbeat

Question 7

What represents ventricular relaxation and filling phases

Answer 7

Diastole

Question 8

What represents ventricular contraction and ejection phases.

Answer 8

Systole

Question 9

The atrioventricular valves open during:

Answer 9

Ventricular Diastole

Question 10

Globulins of the blood plasma are responsible for

Answer 10

Defense mechanisms

Question 11

The atrioventricular valves open during:

Answer 11

Ventricular diastole

Question 12

The ventricles begin to fill during ventricular diastole True or False

Answer 12

True

Question 13

What is the pericardium

Answer 13

Protective fluid filled sac that surrounds the heart

Question 14

What elements can aid Venous blood to return to the heart

Answer 14

Resiratory pump - pressure changes caused by respiration compress veins and assist in blood return to the heart

Muscle contraction - muscle contraction causes presses on nearby veins squeezing the blood toward the heart

Venous Valves - Prevent the back flow of blood

Question 15

Where is bllod pressure measured from

Answer 15

It is a measure of the force (blood pressure) in your arteries

Question 16

How many lobes does the thyroid have

Answer 16

Two

Question 17

The secretion of which hormone is stimulated by low blood sugar levels?

Answer 17

Glucagon

Question 18

Circadian rhythm means that regular fluctuations in hormone levels occurs over a period of how long

Answer 18

A day

Question 19

T4 is also known as

Answer 19

Thyroxcin

Question 20

Thyroxcine is secrted by which gland

Answer 20

Thyroid Gland - Thyroid gland is an endocrine gland in your neck whcih makes thyroxin/T4 and Triiodothorynine/T3

Question 21

Insulin is formed from amino acids True or False

Answer 21

True

Question 22

What is Thyroid Stimulating Hormone (TSH)

Answer 22

Thyroid stimulating hormone is produced by the pituitary gland. Its role is to regulate the production of hormones by the thyroid gland.

Question 23

The secretion of which hormone is stimulated by low blood sugar levels?

Answer 23

Glucagon - glucagon is a peptide hormone used to stimulate glucose production in the liver and thereby to maintain adequate plasma glucose concentrations.

Question 24

Why is the hypothalamus considered to be just as important as the pituitary gland?

Question 25

________ glands secrete their product through ducts, while _______glands secrete their product into the interstital fluid, which flows into the blood.

Answer 25

Exocrine, Endocrine

Question 26

which gland is responsible for oxytocin secretion

Answer 26

Posterior Pituitary gland - Your hypothalamus makes oxytocin, but your posterior pituitary gland stores and releases it into your bloodstream.