Match the type of muscle shown in Column I with location in Column II and select the correct match from the codes given:
COLUMN I | COLUMN II | ||
A | P | ||
B | Q | ||
C | R |
A | B | C | |
1. | P | Q | R |
2. | P | R | Q |
3. | Q | R | P |
4. | Q | P | R |
The structure shown in the given diagram is a:
1. Muscle fibre
2. Myofibril
3. Myofilament
4. Myoblasts
Identify the incorrectly matched pair:
1. | Occipital bone | Cranial bone that has condyles for articulation with superior region of the vertebral column |
2. | Ethmoid | Cranial bone forming the superior roof of the nasal cavity |
3. | Sphenoid | Cranial bone that has a saddle-like depression, location of pituitary |
4. | Frontal bone | An unpaired cranial bone |
Which of the following diagrams describes a pivot joint?
1. | 2. | ||
2. | 4. |
Regarding the source of energy for muscle contraction:
I: | The immediate source is ATP |
II: | Creatine phosphate stores energy but has to be converted to ATP prior to use |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Column I | Column II | ||
A | Pivot joint | P | Between carpal and metacarpal of thumb |
B. | Saddle joint | Q | Between atlas and axis vertebrae |
C | Gliding joint | R | Between carpal bones |
D | Hinge joint | S | Humero-ulnar joint |
A | B | C | D | |
1. | P | Q | R | S |
2. | Q | P | S | R |
3. | Q | P | R | S |
4. | P | Q | S | R |
Assertion (A): | Vertebrochondral ribs are called true ribs. |
Reason (R): | Vertebraochondral ribs are attached to the thoracic vertebrae dorsally and are ventrally connected to the sternum. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
Assertion (A): | Post-menopausal women are at higher risk to develop osteoporosis. |
Reason (R): | Level of oestrogen in post-menopausal women is decreased. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | Both (A) and (R) are False. |
1. | Hinge | 2. | Ball and socket |
3. | Pivot | 4. | Saddle |
1. | Z lines bisect the I band |
2. | G actin is a polymer of F actins |
3. | A subunit of troponin masks active binding sites for myosin on the actin filament. |
4. | Globular head of myosin has ATPase activity. |