Ball and socket joints can be seen in
wrist
fingers
neck
shoulders
D.
shoulders
Ball-and-socket joint, also called spheroidal joint, in vertebrate anatomy, a joint in which the rounded surface of a bone moves within a depression on another bone, allowing greater freedom of movement than any other kind of joint.
Ball and socket joints are found in shoulder joint (humerus in glenoid cavity) and hip joint (femur in acetabulum).
Assertion: Eukaryotic cells have the ability to adopt a variety of shapes and carry out directed movements.
Reason: There are three principal types of protein filaments - microfilaments, microtubules and intermediate filaments, which constitute the cytoskeleton.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
During muscle contraction
size of 'A' bands remain same
size of 'H' zone becomes smaller
size of 'I' band decreases
diameter of fibre increases
The main difference between white and yellow fibres is of
protein
colour of fibres
both (a) and (b)
none of the above
Metha Jahar which is useful in rheumatism is obtained from
Aconitum napellus
Colchicum
Exogonium
Licorice
Which ribs show 'bucket-handle' type of movement?
Rib no. 1-2
Rib no. 3-5
Rib no. 6-10
Rib no. 11-12
