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Qn 1.

Write true or false. if false rewrite into correct sentences.

1. Actin is present in the thin filament.
2. H zone of striated muscle fibre represent both thick and thin filaments.
3. There are 11 pairs of ribs in man

• Answer) \n

1. true
2. False,only thick filaments
3. false,12 Pairs

Qn 2.

Name the type of joints between the following.

1.Atles-Axis,2.between pubic bones in pelvic girdle

3.carpel/metacarpel of thumb.

• Answer) \n

1. Pivot
2. cartilagenous joints.
3. saddle joint.

Qn 3.

What is meant by floating ribs?

• Answer) \n

11th and 12th pairs of ribs are not conected to the sternum

Qn 4.

Bones of aged people turn brittle and can break quickly.

a)Name the bone disorder.

b)Any two reason for the disorder.

• Answer) \n

a) osteoporosis b)hormone imbalance, deficiiency of calcium and vitamin D

Qn 5.

The name of different bones are given below . Arrage them in two columns as provided below.

Humerous,carpel,fibia,ulna,femur,tarsels

Forelimb Hindlimb

• Answer) \n

Fore limbs:-humerus,ulna

hindlimbs:-

carpels,femur,tarsels,fibula

Qn 6.

A patient having severe joint pain.Doctor detect it as the inflammation of synovial membrane.

a)Name the disorder

b)suggest two remedies.

• Answer) \n

a.Arthritis

b.Heat treat ment,physiotherapy.

Qn 7.

What is sarcoplasmic reticulam?Write any one function of sarcoplasmic reticulam.

• Answer) \n

Endoplasmic reticulam in muscle. Store house of calcium ions,helps the contraction of muscle fibre.

Qn 8.

A red muscle work for a prolonged time,while a white muscle fibres suffers from fatigue soon.Give reason?

• Answer) \n

Red muscles have high myoglobin content and plenty of mitochondria which can utilise large amount of oxygen stored in them for ATP

Qn 9.

How many bones present in coxal bone. Identify.

• Answer) \n

3 bones. Ilium, Ischium, Pubis

Qn 10.

A patient having severe joint pain.Doctor detect it as the inflammation of synovial membrane.

a)Name the disorder

b)suggest two remedies.

• Answer) \n

a.Arthritis

b.Heat treat ment,physiotherapy.

Qn 11.

Name the technical term for collar bone.

• Answer) \n

Clavicle

Qn 12.

Smooth muscles are called visceral muscles.Give reason.

• Answer) \n

Found in the visceral organs(inner wall of hollow organs)

Qn 13.

Name two sites in our body where ciliary movement is seen

• Answer) \n

Fallopian tubes ,Trachea

Qn 14.

The contractile proteins present in the thin filament of a muscle fibre.

• Answer) \n

Actin and tropomyosin

Qn 15.

Pick up the chemical that causes fatigue in the muscles

• Answer) \n

Lactic acid

Qn 16.

Match the table Band C with A

A B C

• Answer) \n

A B C

Qn 17.

Name the different regions of vertebral column and write the number of vertebrae in each region.

• Answer) \n

Cervical(7)

Thoracic( 12)

Lumbar(5)

Sacral (1)

Coccygeal-(1)

Qn 18.

write the total number of bones in each

Cranial- ----------------

Facial ----------------------

Hyoid --------------

Ear ossicles ------------

• Answer) \n

Cranial- --------8

Facial -----------14

Hyoid ------------1

Ear ossicles ------6

Qn 19.

Distinguish between movement and locomotion. Give examples?

• Answer) \n

Movement is one of the significant features of living being where there is no displacement (no change in place or location). Eg. Streaming of protoplasm in amoeba.

Locomotion is the voluntary movement result in a change of place or location. Eg.walking ,running etc.

Qn 20.

List the three main types of movement exhibited by cells of human body.

• Answer) \n

Amoeboid,

ciliary

muscular movements

Qn 21.

Macrophages and leucocytes in blood exhibit ---------------- type of movement.

• Answer) \n

Amoeboid movement.

Qn 22.

Passage of ova through the female reproductive tract is facilitated ---------------- movement.

• Answer) \n

Ciliary movement.

Qn 23.

Movement of our limbs ,jaws,tongue etc are exhibited -------------- type of movement.

• Answer) \n

Muscular movement.

Qn 24.

Which are main components of axial skeleton?

• Answer) \n

Skull,

Vertebral column,

sternum

ribs.

Qn 25.

Number of bones in the axial skeleton is ----------------

• Answer) \n

80

Qn 26.

The name of bones of forelimb and hind limb are given below,arrange them in two columns .(Humerus,carpels,femur tibia,metatarsals,ulna ,fibula,patella,radius,tarseals.metacarpals.)

• Answer) \n

Qn 27.

Differentiate red and white muscles.

• Answer) \n

Qn 28.

List the main physiological changes during muscle contraction.

• Answer) \n

I band get reduce

Two Z line come closer

H zone disappeared

A band remain as such

Qn 29.

Steps of mechanism of muscle contraction are given below arrange them in the correct sequence .

i. A signal send by CNS

ii.Myosin head now bind with actin to form cross bridge.

iii. Release of a neurotransmitter which generate an action potential

iv. Ca2+ ions bind with subunit of troponin.

v. The sliding of actin filaments towards the centre result the shortening of sarcomere

vi. The release of Ca ions in to the cytoplasm.

• Answer) \n

i.A signal send by CNS

ii.Release of a neurotransmitter which generate an action potential

iii.The release of Ca ions in to the cytoplasm.

iv. Ca ions bind with subunit of troponin.

v. Myosin head now bind with actin to form cross bridge.

vi.The sliding of actin filaments towards the centre result the shortening of sarcomere

Qn 30.

Define Sarcomere.

• Answer) \n

The portion of myofibril between two successive z line is considered as the functional unit of contraction and is called sarcomere.

Qn 31.

A) List any two salient features of skeletal muscle.

B) Which are the main contractile protein present in this muscle.

• Answer) \n

A) Skeletal muscles have dark and light bands

Dark bands are called A band,light bands are called I band.

B) Myosin and Actin.

Qn 32.

Muscle bundles or fascicles are held together by a connective tissue layer called ------------------- .

• Answer) \n

Fascia.

Qn 33.

Rearrange the features of muscular tissues in columns and give appropriate headings.

• Answer) \n

v