Skeletal System

Q. Cartilage is present in:

1. Tip of the nose
2. Outer ear joints
3. Between adjacent bones of vertebral column
4. All of the above

Q.

What is a skeleton? What is its importance in our body?

Q. Classify and describe epithelial tissue on the basis of structural modifications of cells.

Q.

The ______ protects the delicate internal organs of the body.

Q.

What is the difference between the matrix of bones and cartilage?

Q. Given below is a diagram of the bones of the left human hind limb as seen from front. It has certain mistakes in labelling. Two of the wrongly labelled bones are :-

1. Tibia and tarsals
2. Femur and fibula
3. Fibula and phalanges
4. Tarsals and femur

Q.

Which of the following helps in maintaining body temperature?

1. Sweat glands

2. Connective tissue

3. Adipose tissue

4. Hair

Q. In chordates, basically the pharynx is-

1. Perforated
2. Non-perforated
3. A source of thyroxin which controls metamorphosis
4. Present in the gut of the larva

Q. Why are blood, bone and cartilage called connective tissue?

Q. What is not true about human skull?

1. It is dicondylic
2. It includes 6 ear ossicles
3. It includes 14 facial bones
4. Hyoid is not included in skull bones

Q. Match the following and choose the correct option

Column I	Column II
A. Adipose tissue	i. Nose
B. Stratified epithelium	ii. Blood
C. Hyaline cartilage	iii. Skin
D. Fluid connective tissue	iv. Fat storage

Options:

1. A-iii, B-i, C-iv, D-ii
2. A-iv, B-iii, C-i, D-ii
3. A-ii, B-i, C-iv, D-iii
4. A-i, B-ii, C-iii, D-iv

Q.

Fill in the blank spaces:
The number of phalanges in each limb of human is ___

Q. In mammalian cochlea, the thin-walled sloping roof of the scala media is referred to as:

1. Organ of Corti
2. Scala tympani
3. Basilar membrane
4. Reissner’s membrane

Q. What is ossification?

1. Formation of bone
2. Formation of cartilage
3. None of the above
4. Formation of tendons

Q. Which one of the following statements is true?

1. Head of the humerus bone articulates with the acetabulum of the pelvic girdle.
2. Head of the humerus bone articulates with a glenoid cavity of pelvic girdle.
3. Head of the humerus bone articulates with the glenoid cavity of the pectoral girdle
4. Head of the humerus bone articulates with the acetabulum ofthe pectoral girdle

Q. Bone formed by the ossification of tendon is called as?

1. Sesamoid
2. Cartilage or replacing bone
3. Investing or dermal bone
4. Membranous bone

Q. Fill up the blank spaces appropriately.

Phylum/ Class	Excretory Organ	Circulatory Organ	Respiratory Organ
Arthropoda			Lungs/ Gills/ Tracheal System
	Nephridia	Closed	Skin/ parapodia
	Metanephridia	Open
Amphibia		Closed	Lung

Q. Intervertebral disc is made up of

1. calcified cartilage
2. elastic cartilage
3. hyaline cartilage
4. fibrous cartilage

Q. Identify the incorrectly matched pair:

1. Procambium – primary vascular tissue
2. Ground meristem–cortex and pith of a dicot stem
3. Cork cambium–periderm
4. Protoderm – vascular tissue of a monocot stem

Q. In which of the following pairs of parts of a flowering plant is epidermis absent?

1. Petiole and pedicel
2. Ovule and seed
3. Root tip and shoot tip
4. Shoot bud and floral bud

Q. Which one of the following is not a connective tissue?

1. Blood
2. Bone
3. Muscle
4. Cartilage

Q. Explain sliding filament theory of muscle contraction with neat
sketches.

Q. Epiblema of roots is equivalent to

1. Stele
2. Pericycle
3. Epidermis
4. Endodermis

Q. Write down the common features of the connective tissue. On the basis of structure and function, differentiate between bones and cartilages.

Q. Point of attachment of ribs in the ventral side of the body is

1. vertebral column
2. sternum
3. breast bone
4. both b and c

Q. What is special about tissue present in the heart?

Q. A non-nutritive structure is

1. 
   Tapetum
2. 
   Integument
3. 
   Endosperm
4. 
   Palisade parenchyma

Q. Differentiate between Pectoral and Pelvic girdle.

Q. Mention if the following statements are true (T) or false (F)
​
The shoulder girdle is large and trough-shaped​

1. True
2. False

Q.

Identify the correct combination from the following table.

Type of cartilage	Nature of matrix	Location
(i) Fibrous cartilage	Contain more collagen fibers	Inter-vertebral discs
(ii) Hyaline cartilage	Contain elastic fibers	Tip of nose
(iii) Elastic cartilage	Contain both collagen and elastin fibers	Epiglottis
(iv) Calcified cartilage	Contain megakaryocytes	Pinna of the ear

1. (i) and (iii)

2. (ii) and (iv)

3. (iii) and (iv)

4. (i) and (iv)