Question

18.The stem cells of the epidermis are found in the A. Dermis

B. Stratum basale
C. Stratum corneum
D. Stratum granulosum E. Stratum lucidum

19.The movement of the interphalangeal joints as a person makes a fist is known as A. Abduction

B. Adduction
C. Circumduction D. Extension
E. Flexion

20.Which of the following people is most likely to get scoliosis? A. A person who falls on his head
B. A pregnant woman
C. A teenaged boy

D. A teenaged girl
E. An elderly woman

21.When you stand on your tiptoes, the movement at the ankle joint is known as A. Dorsiflexion
B. Downward rotation
C. Extension

D. Lateral flexion E. Plantar flexion

22.Which of the following structures is found in the knee, but not in the elbow? A. Annular ligament
B. Condyle
C. Joint capsule

D. Meniscus E. Tuberosity

23.Which of the following joints is made primarily of fibrous cartilage? A. Atlantoaxial joint
B. Costal cartilage
C. Intervertebral disc

D. Sternoclavicular joint E. Zygapophyseal joint

24.Medial rotation of the radio-ulnar joint is also known as A. Circumduction
B. Inversion
C. Left rotation

D. Pronation E. Supination

25.Which joint type contains a joint capsule? A. Gomphosis
B. Symphysis
C. Synchondrosis

D. Syndesmosis E. Synovial

26.Which of the following ribs is a floating rib? A. 1

B. 7 C. 8 D. 10 E. 12

27.This bone articulates directly with the radius A. Clavicle

B. First metacarpal C. Pisiform
D. Scaphoid
E. Trapezium

28.A difference between connective tissue and epithelial tissue is A. Cells in connective tissue are held together by tight junctions B. Cells in epithelial tissues are regularly found in lacunae
C. Connective tissue normally contains more cells

D. Connective tissues may be involved in storage of fat E. Epithelial tissues often produce collagen fibers

29.A person with very dark skin will have more __________ than a person with very light skin

A. Blood
B. Carotene
C. Melanin
D. Stratum basale E. Stratum corneum

Answer 1

1) The stem cells are the cells which can differentiate into many cell type. The stem cells are present in the Stratum basale layer. It is the lowermost layer of the epidermis. The cells move from stratum basale in upwards direction. All the cells in other layers of epidermis are derived from the stratum basale.

2) When the interphalangeal joints make a fist, the angle of the joints is reduced and the flexor surface of fingers and the palm are approximated. This type of movement is called flexion. Adduction means moving the fingers to the side. Circumduction means rotating the fingers. Extension at interphalangeal joint doesn't occur. Answer is flexion.

3) Scoliosis means sideways curvature of the spine. Most common is postural scoliosis, which is seen in adolescent girls (teenage girls). Teenage boys can also get scoliosis but they have lesser chances than teenage girls. Elderly women get degenerated scoliosis. Pregnant women have less chances. Answer is teenage girls.

4) When we stand at tiptoes, the ankle gets lifted up and this movement is called plantar flexion. The reverse, when ankle is grounded and the toes are lifted up, is called dorsiflexion. Answer is Plantar flexion.