The striated appearance of a myofibril is due to the distribution pattern of

• actin and myosin

• fascicles

• troponin

• meromyosin

• meromyosin

Label the pans marked in the human skull and select the correct option

• A - Temporal bone; B - Parietal bone; C - Sphenoid bone; D - Frontal bone; E - Zygomatic bone; F - Occipital bone

• A - Frontal bone; B - Zygomatic bone; C - Occipital bone; D - Sphenoid bone; E - Parietal bone; F - Temporal bone

• A - Sphenoid bone; B - Occipital bone; C - Zygomatic bone; D - Parietal bone; E - Frontal bone; F - Temporal bone

• A - Sphenoid bone; B - Zygomatic bone; C - Occipital bone; D - Frontal bone; E - Temporal bone; F - Parietal bone

• A - Sphenoid bone; B - Zygomatic bone; C - Occipital bone; D - Frontal bone; E - Temporal bone; F - Parietal bone

The 'U' shaped bone present at the base of the buccal cavity is

• Maleus

• Ethmoid

• Zygomatic

• Hyoid

• Hyoid

An autoimmune disorder affecting the neuromuscular junction is

• Angina

• CAD

• Emphysema

• Gout

• Gout

Choose the wrongly matched pair

• Portion of myofibril between two 'Z' lines – Sarcomere

• Isotropic band – Actin

• Anisotropic band – Myosin

• Central part of I-band – M-line

• Central part of I-band – M-line

Most of the cartilages in vertebrate embryo are replaced in adult by

• Blood

• Bones

• Tendons

• Ligaments

• Ligaments

Gliding joint is present between the

• Carpals

• Humerus and pectoral girdle

• Carpal and metacarpal of thumb

• Knee

• Knee

128.

The lumbar region of the vertebral column in man is made up of

• 1 fused vertebra

• 7 vertebrae

• 12 vertebrae

• 5 vertebrae

• 5 vertebrae

The skeletal muscle fibre is a 'syncytium', which means it is

• made up of many fibres

• made up of many proteins

• long and slender

• swollen in the middle with tapered ends

• swollen in the middle with tapered ends

The central hollow portion of the human vertebra is called

• Acromion

• Centrum

• Neural canal

• Sternum

• Sternum