Match the bones (Column I) with the kind of joint (Column II) Column I (Bones ) Column II ( Joint) (i) Humerus and shoulder girdle (a) Partially movable (ii) Two adjacent vertebrae (b) Gliding (iii) Skull and the upper end of the backbone (c) Immovable (iv) Bones of brain box (d) Ball and socket (v) Rib and breast bone (e) Pivot

(i) — (d) The humerus and shoulder girdle has a ball and socket. The humerus bone is a ball and socket type of synovial joint with three rotatory and three translatory degrees of freedom. The shoulder girdle also a ball and socket connection between the humerus and scapula (ii) — (b) Gliding joints present in between two vertebrae like the carpal joints of the wrist and tarsal joints of the ankle. Gliding joints occur between the surfaces of two flat bones that are held together by ligaments. (iii) — (e) The pivot joint is present between the skull and the upper end of the backbone. The pivot joint is exemplified by the joint between the first and second cervical vertebrae that are present right under the skull, rotation of the skull is possible because of the pivot joint (iv) — (c) Immovable joints are present between the bones of the brain box that is the skull. The immovable joint connects the ends of the bones by a tough fibrous tissue. Skull bones are immovable in order to protect the brain from impact. (v) — (a) Partially movable joints are present between the bones of rib and breast bone.The ribs are connected to sternum by costal cartilages that are partially movable and connected by hyaline cartilage. Column I (Bones ) Column II ( Joint) (i) Humerus and shoulder girdle (d) Ball and socket (ii) Two adjacent vertebrae (b) Gliding (iii) Skull and the upper end of the backbone (e) Pivot (iv) Bones of brain box (c) Immovable (v) Rib and breast bone (a) Partially movable

E M B I B E

Concise Biology Part - 1>Chapter 15 - Movement and Locomotion>PROGRESS CHECK>Q 1

EASY

9th ICSE

IMPORTANT

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Bending of arm on elbow is an example of first order of lever mechanism.

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Important Questions on Movement and Locomotion

MEDIUM

9th ICSE

IMPORTANT

Concise Biology Part - 1>Chapter 15 - Movement and Locomotion>PROGRESS CHECK>Q 2

Match the bones (Column I) with the kind of joint (Column II)

Column I (Bones )	Column II ( Joint)
(i) Humerus and shoulder girdle	(a) Partially movable
(ii) Two adjacent vertebrae	(b) Gliding
(iii) Skull and the upper end of the backbone	(c) Immovable
(iv) Bones of brain box	(d) Ball and socket
(v) Rib and breast bone	(e) Pivot