Question 1.
Metacarpals are present in
(a) wrist
(b) palm
(c) digits
(d) thigh
Answer
Answer: (b) palm
Explanation:
Metacarpals are palm bone, they are 5 in number.
Question 2.
The elements associated with muscle contraction are
(a) Mg and Ca
(b) Mg and Cl
(c) Na and Ca
(d) Ca and K
Answer
Answer: (c) Na and Ca
Question 3.
What happens in osteoporosis?
(a) Decrease in progesterone
(b) Increase in progesterone
(c) Decrease in estrogen
(d) Both 2 and 3
Answer
Answer: (c) Decrease in estrogen
Explanation:
In osteoporosis, there is decrease in levels of estrogen.
Question 4.
Match the columns.
A. Hinge Joint – 1. Carpals
B. Saddle Joint – 2. Knee
C. Pivot Joint – 3. Thumb
D. Gliding Joint – 4. Vertebra
(a) A-4, B-3, C-1, D-2
(b) A-3, B-1, C-2, D-4
(c) A-2, B-3, C-4, D-1
(d) A-3, B-1, C-4, D-2
Answer
Answer: (c) A-2, B-3, C-4, D-1
Explanation:
Column I shows types of synovial joints. Column II shows the location where these are present.
Question 5.
Coris cycle operates in
(a) Cartilage
(b) Muscle
(c) Liver
(d) Liver and muscle
Answer
Answer: (d) Liver and muscle
Question 6.
One of the following is true of muscle contraction.
(a) H-zone expands
(b) I-band expands
(c) A-Band remains constant
(d) The sarcomeres expands
Answer
Answer: (c) A-Band remains constant
Question 7.
Which cavity is formed by the fusion of coxal bones?
(a) Glenoid cavity
(b) Acetabulum
(c) Acromion
(d) Scapula
Answer
Answer: (b) Acetabulum
Explanation:
There are three coxal bones namely ilium, ischium and pubis.
At the point of fusion of these, a cavity is formed called acetabulum.
Question 8.
Which is a part of pectoral girdle?
(a) Acetabulum
(b) Ilium
(c) Sternum
(d) Glenoid cavity
Answer
Answer: (d) Glenoid cavity
Question 9.
A skeletal muscle which decreases the angle between two bones and bends a joint is
(a) Flexor
(b) Abductor
(c) Extensor
(d) Adductor
Answer
Answer: (a) Flexor
Question 10.
Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?
(a) Iris – Involuntary smooth muscle
(b) Heart wall – Involuntary unstriated muscle
(c) Biceps of upper arm – Smooth muscle fibres
(d) Abdominal wall – Smooth muscle
Answer
Answer: (a) Iris – Involuntary smooth muscle
Question 11.
Largest bone in human body is
(a) Ulna
(b) Femur
(c) Humerus
(d) Tibia
Answer
Answer: (b) Femur
Question 12.
Which one of the following pairs is wrong about cardiac muscles?
(a) Location – only in the heart
(b) Function – Pumping of blood
(c) Gap junctions – No
(d) Striated – Yes
Answer
Answer: (c) Gap junctions – No
Question 13.
What is the ion necessary for muscle contraction?
(a) Cl
(b) Ca
(c) Na
(d) K
Answer
Answer: (b) Ca
Question 14.
Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?
(a) Iris – Involuntary smooth muscle
(b) Heart wall – Involuntary unstriated muscle
(c) Biceps of upper arm – Smooth muscle fibres
(d) Abdominal wall – Smooth muscle
Answer
Answer: (a) Iris – Involuntary smooth muscle
Question 15.
Bones formed by ossification of a tendon is called
(a) Dermal bone
(b) Sesamoid bone
(c) Membrane bone
(d) Cartilage
Answer
Answer: (b) Sesamoid bone
Question 16.
Which joint occurs between humerus and radioulna?
(a) Ball and socket joint
(b) Sliding
(c) Pivot
(d) Hinge joint
Answer
Answer: (d) Hinge joint
Question 17.
Hyoid is a
(a) cavity
(b) cartilage
(c) bone
(d) fluid
Answer
Answer: (c) bone
Explanation:
Hyoid is a single U-shaped bone present at the base of buccal cavity.
Question 18.
______ connect the ends of bones together.
(a) Ligaments
(b) Tendons
(c) Muscles
(d) cartilages
Answer
Answer: (a) Ligaments
Question 19.
_______ is used to capture prey in Hydra.
(a) Cilia
(b) Flagella
(c) Tentacles
(d) Forelimbs
Answer
Answer: (c) Tentacles
Explanation:
Hydra uses its tentacles to capture prey and for locomotion.
Question 20.
Ilium, ischium, and pubis join at the ______ to form coxal bone.
(a) Acetabulum
(b) Ilium
(c) Sternum
(d) Glenoid cavity
Answer
Answer: (a) Acetabulum
0 Comments