Stimulation of a muscle fibre by a motor neuron occurs at
the neuromuscular junction
the transverse tubules
the myofibril
the myofibril
Select the correct statement with respect to locomotion in humans
A decreased level of progesterone cause osteoporosis in old people
Accumulation of uric acid crystals in joints causes their inflammation.
The vertebral column has 10 thoracic
The vertebral column has 10 thoracic
The H -zone in the skeletal muscle fibre is due to
the absence of myofibrils in the central portion of A-band
the central gap between myosin filaments in the A-band
the central gap between actin filaments extending through myosin filaments in the A-band
the central gap between actin filaments extending through myosin filaments in the A-band
Lack of relaxation between successive stimuli in sustained muscle contraction is known as
fatigue
tetanus
tonus
tonus
The characteristics and an example of a synovial joint in humans is
|
Characteristics |
Examples |
|
Fluid cartilage between two bones, limited movements |
Knee joints |
|
Characteristics |
Examples |
|
Fluid filled between two joints, provides cushion |
Skull bones |
|
Characteristics |
Examples |
|
Fluid filled synovial cavity between two bones |
Joint between atlas and axis |
|
Characteristics |
Examples |
|
Fluid filled synovial cavity between two bones |
Joint between atlas and axis |
Select the correct statement regarding the specific disorder of muscular or skeletal system
Muscular dystrophy-age related shortening of muscles
Osteoporosis-decrease in bone mass and higher chances of fractures with advancing age
Myasthenia gravis-Auto immune disorder which inhibits sliding of myosin filaments
Myasthenia gravis-Auto immune disorder which inhibits sliding of myosin filaments
Which of the following joints would allow no movement?
Fibrous joint
Cartilaginous joint
Synovial Joint
Synovial Joint
Which type of tissue correctly matches with its location?
| Tissue | Location |
| Areolar tissue | Tendons |
| Tissue | Location |
| ATransitional epithelium | Teip of nose |
| Tissue | Location |
| Cuboidal epithelium | Tlining of stomach |
| Tissue | Location |
| Cuboidal epithelium | Tlining of stomach |
Select the correct matching of the type of the joint with the example in human skeletal system
|
Types of joint |
Example |
|
Cartilaginous joint |
Between frontal and parietal |
|
Types of joint |
Example |
|
Pivot joint |
Between third and fourth cervical vertebrae |
|
Types of joint |
Example |
|
Hinge joint |
Between humerus and pectoral girdle |
|
Types of joint |
Example |
|
Hinge joint |
Between humerus and pectoral girdle |
Which of the following is not a function of the skeletal system?
Production of erythrocytes
Storage of minerals
Production of body heat
Production of body heat
