Question

Select the correct matching of the types of joint with the example in human skeletal system
A) Cartilaginous joint –Between frontal and parietal
B) Pivot joint –between third and fourth cervical vertebrae
C) Hinge point –Between humerus and pectoral girdle
D) Gliding point –Between carpals

Answer 1

The joints are main categories majorly into three sub-categories namely, Fibrous joint, Cartilaginous joint, and Synovial joint on the basis of movement. Carpals have gliding joints are synovial joints as the bones are flat and glide over one another.

Complete step by step answer: On the basis of movability there are three types of joints :
a. Fibrous joint: Bones are connected by collagen. No cavity is present and this type of joint is a fixed immovable joint e.g. bones of the skull.
b. Cartilaginous joint: Bones are connected to each other by cartilage. This type of joint allows limited movement example: joint between adjacent vertebrae and the joint between the first rib and sternum.
c. Synovial joint: Bones are not directly connected, rather a fluid-filled cavity called a synovial cavity is present and because of this cavity bones are free to move.
-Synovial joints are of 6 types :
1. Saddle joint: It is a biaxial joint with one bone turning inwards and the other bone turning outwards. It helps in movements like bending, straightening, and rotation example joints between thumb and palm.
2. Ellipsoid joint: Convex end of one bone fits into concave end of other bone. It is also biaxial and allows movements like straightening, bending, side to side, etc eg joint between bones of wrist and radius.
3. Ball and socket joint: It is multiaxial and allows movements in all directions. In this type the head of one bone fits into the depression of another example shoulder joint and hip joint.
4. Hinge joint: cylindrical end of one bone fits into the trough of adjoining bone and is like door hinge example: elbow joint, knee joint.
5. Gliding joint: Bones glide over one another and are non-axial joint example carpals and tarsals.
6. Pivot joint: End of one bone moves within the ring-like structure of other bone and is uniaxial joint example joint between atlas and axis
Hence, option d is correct gliding joint is present in carpals

Note: The bones of the skull have fibrous joint as they do not show any movement while the cartilaginous joint is present in between adjacent vertebrae, the ball and socket joint is present in
between the humerus and pectoral girdle.