Anatomy And Physiology Questions And Answers

Anatomy and physiology questions

/22

Anatomy and physiology questions and answers

Try your knowledge on Anatomy and physiology

1 / 22

In the context of respiratory regulation, how do the lungs help control blood pH?

a) By adjusting the rate of CO2 excretion

b) By secreting bicarbonate ions into the blood

c) By filtering out urea and uric acid

d) By increasing the intake of nitrogen

2 / 22

Which enzyme is responsible for converting fibrinogen into insoluble fibrin threads during blood clotting?

a) Prothrombin

b) Thrombin

c) Thromboplastin

d) Plasmin

3 / 22

Which type of epithelial tissue is specifically adapted for filtration and diffusion, such as in the alveoli of the lungs?

a) Stratified squamous epithelium

b) Transitional epithelium

c) Simple squamous epithelium

d) Simple columnar epithelium

4 / 22

Which of the following is a common physiological effect of ageing on the cardiovascular system?

a) Increase in cardiac output and cardiac reserve

b) Stiffening of blood vessel walls and reduction in cardiac function

c) Decrease in blood pressure due to vessel thinning

d) Increased production of red blood cells to compensate for hypoxia

5 / 22

Why is Vitamin $K$ essential for the blood clotting process?

a) it is required for the synthesis of several clotting factors in the liver

b) It prevents the breakdown of fibrin threads

c) It directly converts prothrombin into thrombin

d) It acts as a sticky surface for platelet adhesion

6 / 22

Which of the following is a characteristic of brown adipose tissue?

a) It is the main form of energy storage in obese adults

b) It has an extensive capillary network and produces heat instead of energy

c) It serves as a structural cushion for the kidneys

d) It is found only in the yellow bone marrow

7 / 22

What is the difference between a benign tumour and a malignant tumour regarding differentiation?

a) Benign cells are well differentiated and resemble the parent tissue

b) Differentiation refers only to the rate of tumour growth

c) Malignant cells are well differentiated and resemble the parent tissue

d) Both types of tumours consist of poorly differentiated cells

8 / 22

Which plasma protein is primarily responsible for maintaining the osmotic pressure of the blood?

a) Fibrinogen

b) Albumin

c) Immunoglobulin

d) Prothrombin

9 / 22

What is the physiological significance of 'functional reserve' in organs like the kidneys or heart?

a) It is the maximum capacity an organ can reach during growth

b) It allows the body to maintain homeostasis even if some organ function is lost

c) It is the process by which organs repair themselves after injury

d) It describes the immediate response to a sudden illness

10 / 22

A person with blood group $A B$ is considered a 'universal recipient' because their plasma contains:

a) High levels of Rhesus factor

b) Neither anti-A nor anti-B antibodies

c) Only anti-A antibodies

d) Both anti-A and anti-B antibodies

11 / 22

The diaphragm separates which two body cavities?

a) Pleural and Pericardial

b) Cranial and Thoracic

c) Abdominal and Pelvic

d) Thoracic and Abdominal

12 / 22

Which connective tissue cell is responsible for the secretion of heparin and histamine during an inflammatory response?

a) Fibroblasts

b) Mast cells

c) Macrophages

d) Adipocytes

13 / 22

What is the primary role of neutrophils in the immune system?

a) Destroying large parasites like worms

b) Engulfing and killing bacteria through phagocytosis

c) Producing specific antibodies against viruses

d) Releasing histamine to trigger an allergic reaction

14 / 22

Which type of connective tissue contains chondrocytes and a solid matrix, providing flexibility and smooth surfaces for joints?

a) Cartilage

b) Bone

c) Areolar tissue

d) Fibrous tissue

15 / 22

Which type of muscle tissue is characterized by the presence of intercalated discs and automaticity?

a) Skeletal muscle

b) Cardiac muscle

c) Fibrous muscle

d) Smooth muscle

16 / 22

Which anatomical plane divides the body into right and left halves?

a) Median plane

b) Oblique plane

c) Coronal plane

d) Transverse plane

17 / 22

What term describes the spread of malignant tumour cells to distant parts of the body via blood or lymph?

a) Hyperplasia

b) Metastasis

c) Infarction

d) Aetiology

18 / 22

Which of the following describes the anatomical position?

a) Standing upright with arms at sides and palms facing forward

b) Sitting with the head turned toward the side being described

c) Standing with feet apart and arms raised to the side

d) Lying flat on the back with palms facing down

19 / 22

What occurs when the body's alkaline buffer reserves are exhausted and the blood pH drops below 7.35?

a) Acidosis

b) Homeostasis

c) Ischaemia

d) Alkalosis

20 / 22

In the $A BO$ blood system, which blood group is known as the 'universal donor' because its red cells have neither $A$ nor $B$ antigens?

a) Group O

b) Group A

c) Group AB

d) Group B

21 / 22

What is the primary function of the hormone erythropoietin?

a) To trigger the inflammatory response in tissues

b) To increase the production and maturation of red blood cells

c) To stimulate the production of platelets

d) To regulate the levels of white blood cells

22 / 22

What is the primary cause of pernicious anaemia?

a) Autoimmune destruction of parietal cells and intrinsic factor

b) Excessive consumption of alcohol leading to liver failure

c) Genetic mutation resulting in sickled red blood cells

d) Chronic loss of blood through the GI tract

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1. Which type of epithelial tissue is specifically adapted for filtration and diffusion, such as in the alveoli of the lungs?

A.Simple columnar epithelium

B.Stratified squamous epithelium

C.Transitional epithelium

D.Simple squamous epithelium

2. Which connective tissue cell is responsible for the secretion of heparin and histamine during an inflammatory response?

A.Macrophages

B.Mast cells

C.Adipocytes

D.Fibroblasts

3.What is the primary function of the hormone erythropoietin?

A.To stimulate the production of platelets

B.To trigger the inflammatory response in tissues

C.To increase the production and maturation of red blood cells

D.To regulate the levels of white blood cells

4. A person with blood group AB is considered a ‘universal recipient’ because their plasma contains:

A.Only anti-A antibodies

B.Both anti-A and anti-B antibodies

C.High levels of Rhesus factor

D.Neither anti-A nor anti-B antibodies

5. What is the physiological significance of ‘functional reserve’ in organs like the kidneys or heart?

A.It describes the immediate response to a sudden illness

B.It allows the body to maintain homeostasis even if some organ function is lost

C.It is the process by which organs repair themselves after injury

D.It is the maximum capacity an organ can reach during growth

6. In the ABO blood system, which blood group is known as the ‘universal donor’ because its red cells have neither A nor B antigens?

A.Group B

B.Group A

C.Group O

D.Group AB

7. Which enzyme is responsible for converting fibrinogen into insoluble fibrin threads during blood clotting?

A.Plasmin

B.Thromboplastin

C.Thrombin

D.Prothrombin

8. What is the primary cause of pernicious anaemia?

A.Chronic loss of blood through the GI tract

B.Genetic mutation resulting in sickled red blood cells

C.Autoimmune destruction of parietal cells and intrinsic factor

D.Excessive consumption of alcohol leading to liver failure

9. Which of the following describes the anatomical position?

A.Sitting with the head turned toward the side being described

B.Lying flat on the back with palms facing down

C.Standing with feet apart and arms raised to the side

D.Standing upright with arms at sides and palms facing forward

10. The diaphragm separates which two body cavities?

A.Abdominal and Pelvic

B.Cranial and Thoracic

C.Pleural and Pericardial

D.Thoracic and Abdominal

11. Which type of muscle tissue is characterized by the presence of intercalated discs and automaticity?

A.Smooth muscle

B.Fibrous muscle

C.Skeletal muscle

D.Cardiac muscle

12.What is the difference between a benign tumour and a malignant tumour regarding differentiation?

A.Malignant cells are well differentiated and resemble the parent tissue

B.Benign cells are well differentiated and resemble the parent tissue

C.Both types of tumours consist of poorly differentiated cells

D.Differentiation refers only to the rate of tumour growth

13. Which plasma protein is primarily responsible for maintaining the osmotic pressure of the blood?

A.Albumin

B.Immunoglobulin

C.Prothrombin

D.Fibrinogen

14. What occurs when the body’s alkaline buffer reserves are exhausted and the blood pH drops below 7.35?

A.Acidosis

B.Ischaemia

C.Homeostasis

D.Alkalosis

15. Which of the following is a characteristic of brown adipose tissue?

A.It is found only in the yellow bone marrow

B.It has an extensive capillary network and produces heat instead of energy

C.It serves as a structural cushion for the kidneys

D.It is the main form of energy storage in obese adults

16. What term describes the spread of malignant tumour cells to distant parts of the body via blood or lymph?

A.Aetiology

B.Metastasis

C.Infarction

D.Hyperplasia

17. Which anatomical plane divides the body into right and left halves?

A.Median plane

B.Oblique plane

C.Coronal plane

D.Transverse plane

19. Which type of connective tissue contains chondrocytes and a solid matrix, providing flexibility and smooth surfaces for joints?

A.Areolar tissue

B.Cartilage

C.Fibrous tissue

D.Bone

20. In the context of respiratory regulation, how do the lungs help control blood pH?

A.By adjusting the rate of CO2 excretion

B.By increasing the intake of nitrogen

C.By filtering out urea and uric acid

D.By secreting bicarbonate ions into the blood

21.What is the primary role of neutrophils in the immune system?

A.Producing specific antibodies against viruses

B.Destroying large parasites like worms

C.Releasing histamine to trigger an allergic reaction

D.Engulfing and killing bacteria through phagocytosis

22.Which of the following is a common physiological effect of ageing on the cardiovascular system?

A.Increase in cardiac output and cardiac reserve

B.Stiffening of blood vessel walls and reduction in cardiac function

C.Decrease in blood pressure due to vessel thinning

D.Increased production of red blood cells to compensate for hypoxia

23.Why is Vitamin K essential for the blood clotting process?

A. It is required for the synthesis of several clotting factors in the liver

B.It directly converts prothrombin into thrombin

C.It prevents the breakdown of fibrin threads

D.It acts as a sticky surface for platelet adhesion