Download App

Locomotion and Movement — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYLocomotion and Movement5 Marks
Question
Describe different types of joints in the human skeleton.
✓

Answer

Joints have been classified into three major structural forms, namely, fibrous, cartilaginous and synovial:
  1. Fibrous Joints: Fibrous joints do not allow any movement. This type of joint is shown by the flat skull bones which fuse end-to-end with the help of dense fibrous connective tissues in the form of sutures, to form the cranium.
  2. Cartilaginous Joints: In cartilaginous joints, the bones involved are joined together with the help of cartilages. The joint between the adjacent vertebrae in the vertebral column is of this pattern and it permits limited movements.
  3. Synovial Joints: Synovial joints are characterised by the presence of a fluid filled synovial cavity between the articulating surfaces of the two bones. Such an arrangement allows considerable movement. These joints help in locomotion and many other movements.
  1. Ball and socket joint (between humerus and pectoral girdle).
  2. Hinge joint (knee joint).
  3. Pivot joint between atlas and axis).
  4. Gliding joint (between the carpals).
  5. Saddle joint (between carpal and metacarpal of thumb).

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "5 Marks Questions" from Locomotion and Movement→Locomotion and Movement — all question types→BIOLOGY STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Give a brief account of mechanism of hearing.
→
Frog is a poikilotherm, exhibits camouflage and undergoes aestivation and hibernation, how are all these beneficial to it?
→
Describe prophase I of meiotic cell division. How is it different from prophase II of meiosis?
→
Comment on the cartwheel structure of centriole.
→
Draw a neat and well labeled diagram of male reproductive system of a frog.
→
Under what conditions are C4 plants superior to C3?
→
Make a list of common fruits, their type and their edible parts.
→
How is the gametophyte of bryophytes different from that of gymnosperms?
→
You have learnt that a characteristic feature of endocrine system is the presence of feed back loops. By this what is meant if hormone A stimulates gland ‘X’ to secrete hormone B, the production of ‘A’ could be modified when the level of B changes in our blood. An example is the relation between hormones LH and estrogen (E2). An old woman exhibits the following features. High levels of LH in blood but low levels of E2 in the blood. Another woman exhibits high level of LH in blood and also high level of E2 in the blood. Where is the defect in both these women? Provide suitable diagram to support this answer.
→
Some varieties of wheat are known as spring wheat while others are called winter wheat. Former variety is sown, and planted in spring and is harvested by the end of the same season. However, winter varieties, if planted in spring, fail to flower or produce mature grains within a span of a flowering season. Explain, why?
→