1. The supportive skeletal structures in the human external ears and nose tip are:
(a) Ligament
(b) Areolar tissue
(c) Bone
(d) Cartilage
Correct answer: Cartilage
2. The two protein molecules closely associated with actin filaments are:
(a) Actin and Myosin
(b) Actin & Tropomyosin
(c) Troponin & Tropomyosin
(d) Tubulin & Tropomyosin
Correct answer: Troponin & Tropomyosin
3. Cells and their functions are matched below, which is the correct option?
(a) Osteoblast - bone forming cells
(b) Osteoclasts - bone absorbing cells
(c) Osteoblasts - cartilage forming cells
(d) both a & b are correct
Correct answer: both a & b are correct
4. The thoracic cage of man is formed of:
(a) Ribs, sternum, and thoracic vertebrae
(b) Ribs and thoracic vertebrae
(c) Ribs, sternum, and lumbar vertebrae
(d) Ribs and sternum
Correct answer: Ribs, sternum, and thoracic vertebrae
5. Which one of the following statements is true about spongy bone?
(a) Unorganised appearance
(b) Lighter than compact bone
(c) Surrounds the bone marrow cavity
(d) All of these are correct
Correct answer: All of these are correct
6. The type of muscles present in our:
(a) Thigh are striated and voluntary
(b) Upper arm are smooth fibers fusiform in shape
(c) Heart are involuntary and unstriated smooth muscles
(d) Intestine are striated and involuntary
Correct answer: Thigh are striated and voluntary
7. Motor neurons electrically stimulate nearby muscle fibers at:
(a) Creative phosphate
(b) Actin filament
(c) Neuromuscular junction
(d) Cross-bridges
Correct answer: Neuromuscular junction
8. Chemical ions responsible for muscle contractions are:
(a) Na+ and Ca2+
(b) Na+ and K+
(c) Ca2+ and K+
(d) Ca2+ and Mg2+
Correct answer: Ca2+ and Mg2+
9. Assertion: Knee joint is the hinge type of joint
Reason: Femur, Patella, and Fibula are associated with the knee joint.
(a) Assertion and reason, both are correct and reason is the correct explanation of the assertion.
(b) Assertion and reason, both are correct. But reason is not the correct explanation of the assertion.
(c) Assertion is correct, but reason is wrong.
(d) Assertion is wrong but reason is correct.
Correct answer: Assertion and reason, both are correct. But reason is not the correct explanation of the assertion.
10. In a hurdle race, the major energy source of the leg muscle is:
(a) Preformed ATP
(b) Glycolysis
(c) Pyruvate & lactate
(d) Oxidative metabolism
Correct answer: Preformed ATP
11. Which one of the following statements is incorrect regarding skeletal muscles?
(a) Responsible for voluntary movement
(b) Contract and expand slowly
(c) Cell fibers have multiple nuclei
(d) Stimulated by the central nervous system
Correct answer: Contract and expand slowly
12. Which kind of joint (sutures of the cranium) is essentially immovable?
(a) Cartilaginous joint
(b) Fibrous joint
(c) Hinge joint
(d) Ball and socket joint
Correct answer: Fibrous joint
13. Which of the following is a wrist bone?
(a) Pubis
(b) Ulna
(c) Carpal
(d) Femur
Correct answer: Carpal
14. The largest synovial joint of the human body is:
(a) Knee joint
(b) Shoulder joint
(c) Elbow joint
(d) Hip joint
Correct answer: Hip joint
15. The ilium, ischium, and pubis join at the ________ to form the coxal bone.
(a) Acetabulum
(b) Ilium
(c) Sternum
(d) Glenoid cavity
Correct answer: Acetabulum
16. When bone becomes hard, the osteocytes are trapped in hollow chambers called:
(a) Osteoblasts and osteoclasts
(b) Red bone marrow
(c) Cartilage
(d) Lacunae
Correct answer: Lacunae
17. Voluntary muscular coordination is under the control of:
(a) Cerebellum
(b) Cerebral hemisphere
(c) Cerebrum
(d) Medulla oblongata
Correct answer: Cerebellum
18. The vertebral column extends from the skull to:
(a) Pectoral girdle
(b) Pelvis
(c) Frontal bone
(d) Phalanges
Correct answer: Pelvis
19. The molecule that provides ATP during muscular contraction is:
(a) Creative phosphate
(b) Hemoglobin
(c) Myoglobin
(d) Myosin
Correct answer: Creative phosphate
20. In a newborn baby, the flat bones in its skull are separated by large spaces filled with fibrous connective tissues. These soft spots are called:
(a) Fontanels
(b) Chitin
(c) Bursae
(d) Menisci
Correct answer: Fontanels
21. The segment of a myofibril between two Z-lines is called:
(a) Sarcomere
(b) Sarcoplasm
(c) Sarcolemma
(d) Sarconema
Correct answer: Sarcomere
22. The joint found between the ribs and sternum is:
(a) Cartilaginous
(b) Hinge
(c) Angular
(d) Fibrous
Correct answer: Cartilaginous
23. The joint between the atlas and axis is:
(a) Ball and socket joint
(b) Saddle
(c) Pivot
(d) Angular
Correct answer: Pivot
24. The clavicle articulates with the ___________ of the scapula:
(a) Acromion process
(b) Glenoid cavity
(c) Acetabulum
(d) Ball and socket joint
Correct answer: Acromion process
25. The contractile protein of skeletal muscle involving ATPase activity is:
(a) Actin
(b) Myosin
(c) Troponin
(d) Tropomyosin
Correct answer: Myosin
26. Muscle fatigue sets in due to the non-availability of:
(a) Calcium
(b) ATP
(c) Actin binding site
(d) Mg factor
Correct answer: ATP
27. Upon stimulation of skeletal muscles, calcium is immediately made available for binding to Troponin from:
(a) Blood
(b) Sarcoplasmic reticulum
(c) Lymph
(d) Bone
Correct answer: Sarcoplasmic reticulum
28. The functional unit of the contractile system in striated muscle is:
(a) Myosin
(b) Cross bridges
(c) Z band
(d) Sarcomere
Correct answer: Sarcomere
29. What is a sarcomere?
(a) Part between two H-lines
(b) Part between two A-lines
(c) Part between two Z-lines
(d) Part between two I-bands
Correct answer: Part between two Z-lines
30. Which muscle is adapted to be highly resistant to fatigue?
(a) Cardiac muscle
(b) Striped
(c) Unstriped
(d) Voluntary
Correct answer: Cardiac muscle
31. Which type of cartilage is found in intervertebral discs?
(a) Elastic
(b) Fibrous
(c) Hyaline
(d) Calcified
Correct answer: Fibrous
32. Which of the following is the smallest muscle in the human body?
(a) Stapedius
(b) Sartorius
(c) Gluteus maximus
(d) Trapezius
Correct answer: Stapedius
33. The process of bone formation is known as:
(a) Ossification
(b) Calcification
(c) Osteoporosis
(d) Remodeling
Correct answer: Ossification
34. Which cells are responsible for bone resorption?
(a) Osteocytes
(b) Osteoblasts
(c) Osteoclasts
(d) Chondrocytes
Correct answer: Osteoclasts
35. Which type of muscle tissue is voluntary?
(a) Skeletal
(b) Cardiac
(c) Smooth
(d) All of the above
Correct answer: Skeletal
36. What is the function of red bone marrow?
(a) Store calcium
(b) Produce red blood cells
(c) Store fat
(d) Store iron
Correct answer: Produce red blood cells
37. Which type of joint is found in the thumb?
(a) Ball and socket
(b) Hinge
(c) Saddle
(d) Pivot
Correct answer: Saddle
38. Which of the following is a function of the skeletal system?
(a) Protect organs
(b) Produce hormones
(c) Digest food
(d) All of the above
Correct answer: Protect organs
39. The human skeleton is divided into two main parts:
(a) Axial and appendicular
(b) Central and peripheral
(c) Cranial and caudal
(d) Anterior and posterior
Correct answer: Axial and appendicular
40. Which mineral is most important for bone health?
(a) Potassium
(b) Sodium
(c) Calcium
(d) Magnesium
Correct answer: Calcium
41. What is the main function of the vertebral column?
(a) Protect the spinal cord
(b) Support the body
(c) Enable movement
(d) All of the above
Correct answer: All of the above
42. Which bone is known as the collarbone?
(a) Clavicle
(b) Scapula
(c) Sternum
(d) Humerus
Correct answer: Clavicle
43. What is the primary function of osteoblasts?
(a) Break down bone
(b) Build bone
(c) Transport nutrients
(d) Store fat
Correct answer: Build bone
44. Which muscle is responsible for the movement of the upper arm?
(a) Biceps brachii
(b) Triceps brachii
(c) Deltoid
(d) Pectoralis major
Correct answer: Deltoid
45. Which part of the skeleton protects the brain?
(a) Skull
(b) Rib cage
(c) Pelvis
(d) Vertebral column
Correct answer: Skull
46. The mandible is also known as the:
(a) Lower jaw
(b) Upper jaw
(c) Cheekbone
(d) Collarbone
Correct answer: Lower jaw
47. The patella is commonly known as the:
(a) Knee cap
(b) Shoulder blade
(c) Elbow
(d) Wrist bone
Correct answer: Knee cap
48. The primary function of red blood cells is to:
(a) Carry oxygen
(b) Fight infection
(c) Form clots
(d) Carry nutrients
Correct answer: Carry oxygen
49. Which of the following is a bone of the lower limb?
(a) Femur
(b) Humerus
(c) Clavicle
(d) Sternum
Correct answer: Femur
50. The biceps brachii is located in the:
(a) Upper arm
(b) Forearm
(c) Thigh
(d) Calf
Correct answer: Upper arm
Comments
Post a Comment