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प्रश्न
Explain appendicular skeleton.
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उत्तर
Appendicular skeleton: It consists of limbs, shoulder or pectoral girdle and hip or pelvic girdles and bones of limbs.
(a) Bones of the fore arm: Humerus, radius, Ulna, Carpals, Metacarpals, finger bones, etc.
(b) Bones of hind limb: Femur, Tibia, Fibula, Tarsal, Metatarsal, etc.
(c) Pectoral Girdle: In mammals, two halves of pectoral girdle are situated at equal distance from the ribs on the dorsal plane. Each of it is called shoulder bones. Each half of it made up of a triangular flat bone called scapula. From its outer side a projection arises called acromion and has a cavity called glenoid cavity.
(d) Pelvic Girdle: It consists of two similar halves. In each, three bones are found, ilium, ischium and pubis. Pubis bones of both halves are joined and are called pubic sysmphysis. Ilium and ischium form acetabulum cavity in which head of femur articulates by forming ball and socket joint. A hollow space is found between pubis and ischium, which is called obdurate foramen, which provides passage for obturatry artery, vein and nerve.
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संबंधित प्रश्न
Bones of which part in the axial skeleton?
Explain axial skeleton.
Describe the fore and hind limbs of man.
The question has four options. Choose the correct answer:
In mammals each half of pelvic girdle consists of
Analogy:
A newborn baby has bones: More than 300.
An adult has bones: ______.
What are the bones found in the skull?
A newborn baby has ______ bones.
______ connect bone to muscle.
Which is the longest bone in our body?
Match List - I with List - II.
| List I | List II | ||
| (a) | Scapula | (i) | Cartilaginous joints |
| (b) | Cranium | (ii) | Flat bone |
| (c) | Sternum | (iii) | Fibrous joints |
| (d) | Vertebral column | (iv) | Triangular flat bone |
Choose the correct answer from the options given below.
