Identify the correct statement regarding the comparison of skeletal and smooth muscle:
1. Nervous stimulation of smooth muscle is always excitatory, whereas nervous stimulation of skeletal muscle may be excitatory or inhibitory.
2. The contractile activity of smooth muscle may be affected by hormones, whereas the contractile activity of the skeletal muscle is not.
3. Both ANS and somatic neural systems innervate smooth muscle, whereas skeletal muscle may be innervated by the somatic motor system only.
4. The calcium-binding protein in smooth muscle is troponin whereas in skeletal muscle, it is tropomyosin.

What type of bone is patella?
1. membranous
2. flat
3. sesamoid
4. horizontal

What type of cartilage is the articular cartilage?
1. hyaline
2. fibrous
3. elastic
4. calcified

Spongy bone is also called as:
1. cancellous
2. compact
3. horizontal
4. long

The vitamin required for collagen synthesis that holds teeth in their sockets is the vitamin:

1. A

2. B

3. C

4. D

The largest formen in the human body is:
1. foramen magnum
2. foramen of Monro
3. obturator foramen
4. iter

One of the unpaired facial bones of the skull that takes part in the formation of the nasal septum is:
1. sphenoid
2. vomer
3. nasal bone
4. lacrimal bone

The largest ankle bone is:
1. cuboid
2. navicular
3. calcaneus
4. talus

A dense outer layer of vascular connective tissue enveloping the bones except at the surfaces of the joints is the:

1. epiphysis

2. diaphysis

3. articular cartilage

4. periosteum

What is number of bones in a human adult?