Locomotion and Movement
1. Muscles are derived from
d. neuro ectoderm
2. Muscles are formed by
3. The muscles attached to the bones are called
a. skeletal muscle
b. cardiac muscle
c. involuntary muscle
d. smooth muscles
4. Skeletal muscles are attached to the bones by
5. The bundle of muscle fibres is called
6. The pigment present in the muscle fibre to store oxygen is
7. The functional unit of a muscle fibre is
8. The protein present in the thick filament is
9. The protein present in the thin filament is
10. The region between two successive Z-discs is called a
11. Each skeletal muscle is covered by
12. Knee joint is an example of
a. saddle joint
b. hinge joint
c. pivot joint
d. gliding joint
13. Name of the joint present between the atlas and axis is
a. synovial joint
b. pivot joint
c. saddle joint
d. hinge joint
14. ATPase enzyme needed for muscle contraction is located in
15. Synovial fluid is found in
a. Ventricles of the brain
b. Spinal cord
c. immovable joint
d. freely movable joints.
16. Inflammation of joints due to accumulation of uric acid crystals is called as
b. myasthenia gravis
17. Acetabulum is located in
a. collar bone
b. hip bone
c. shoulder bone
d. thigh bone
18. Appendicular skeleton is
a. girdles and their limbs
c. skull and vertebral column
d. ribs and sternum
19. The type of movement exhibits by the macrophages are
20. The pointed portion of the elbow is
a. acromion process
b. glenoid cavity
c. olecranon process
21. Name the different types of movement
22. Name the filaments present in the sarcomere
23. Name the contractile proteins present in the skeletal muscle
24. When describing a skeletal muscle, what does “striated” mean?
25. How does an isotonic contraction take place?
26. How does an isometric contraction take place?
27. Name the bones of the skull.
28. Which is the only jointless bone in human body?
29. List the three main parts of the axial skeleton
30. How is tetany caused?
31. How is rigor mortis happened?
32. What are the different types of rib bones that form the rib cage?
33. What are the bones that make the pelvic girdle?
34. List the disorders of the muscular system.
35. Explain the sliding- filament theory of muscle contraction.
36. What are the benefits of regular exercise?
37. What are the different types of bone fracture?
38. Write about the mechanism and healing of bone fracture.
39. What is meant by physiotherapy?
40. Comment on the dislocation of joints.
Acetylecholine – A neurotransmitter found throughout the nervous system.
Actin – A protein found in the cytoskeleton and muscle cells; it is the principal constituent of the thin filament.
Adenosine triphosphate(ATP) – A nucleotide molecule consisting of adenine, riboseand three phosphate molecules. It plays a central role in energy exchange in biological systems.
Cartilage – A firm, elastic connective tissue produced by the cells,called chondrocytes.
Exoskeleton – Skeletal elements are located upon body surface or in the skin (Example: Shells of snails in inverbrates, Hair claw and nails in vertibrates.
Endoskeleton – Skeletal elements are located inside the organisms with muscles outside. Found in skeletal system of vertibrates
Lever system – Movement takes place along the joints which act as fulcrum of the lever. One can observe functioning of all the three types of levers in the human skeleton.
Mesoderm – The middle embryonic germ layer. It gives rise to the muscular, skeletal, urogenital and circulatory system.
Motor neuron – A motor neuron that transmits nervous impulses from the spinal cord to effectors.
Myoglobin – Heme containing protein that binds molecular oxygen in muscle cells.
Myosin – A protein found in muscle cells that function in muscle contaction. It is present in thick filaments of muscles, known as myosin fibres
Sarcolemma – Muscle cell membrane capable of propagating action potentials
Sarcomere – The functional contractile unit of striated muscle.
Sarcoplasmic reticulum – The endoplasmic reticulum of a muscle cell. It envelopes myofibrils
Tendon – A fibrous connective tissue that connects a bone to a muscle