Question

1. Skeleton of human body is made up of
(a) bones (b) cartilage(c) both bones and cartilage (d) None of these
2. Fixed joints are found in
(a) Lower jaw (b) Skull(c) Hands (d) Hip bone
3. Knee joints are
(a) Hinge joints (b) Ball and socket joints(c) pivotal joints (d) fixed
joints
4. Which one of the following are the characteristics of birds?
(a) Strong muscles (b) Light bones (c) Hollow bones (d) All of these
5. Skull covers and protect
a) Eyes b) Brain c) Nose d) Legs

Answer 1

Answer:

1. c) both bones and cartilages

2. b) skull

3. a) hinge joint

4. d) all of these

5. b) brain

Answer 2

Answer:

1. the adult human skeleton is made up of 206 bones. These include the bones of the skull, spine (vertebrae), ribs, arms and legs. Bones are made of connective tissue reinforced with calcium and specialised bone cells. Most bones also contain bone marrow, where blood cells are made.
2. Fixed joints permit stability to certain areas of the body, although they do not move. Examples of fixed joints include the joints between the bones in the skull and the joint where the radius and ulna bones meet in the lower arm
3. The knee joint is a hinge type synovial joint, which mainly allows for flexion and extension (and a small degree of medial and lateral rotation). It is formed by articulations between the patella, femur and the characteristics of birds
4. Characteristics of Birds. Birds are endothermic and, because they fly, they require large amounts of energy, necessitating a high metabolic rate. As with mammals, which are also endothermic, birds have an insulating covering that keeps heat in the body: feathers.
5. Ads·Skull covers and protect