Answer:
A patient with a spinal cord injury that resulted in paralysis of the legs has paraplegia (option c).
Explanation:
Paraplegia consists of paralysis of the lower extremities or legs due to injuries to the spinal cord, from the dorsal vertebrae. Other causes of paraplegia include tumors and malformations that affect the spinal cord.
<u>The spinal cord provides the nerves that allow the innervation of the limbs</u>. A spinal cord injury interrupts communication between the brain and the effector (motor) muscles as well as the sensory nerves in the affected limbs, producing paralysis. When it occurs in the legs is called paraplegia.
The other options are not correct because:
a. Hemiplegia corresponds to paralysis of upper and lower limbs on one side only.
b. Pseudoplegia is a paralysis that is due to mental disorders such as conversion disorder, without injury to the nervous system.
d. Dysplegia is associated with motor disorders observed in children with varying degrees of dysfunction or cerebral paralysis.
Answer:
When skeletal muscles are trained by adding physical stress to them, this is called progressive resistance training (PRT).
Explanation:
During PRT, muscles are exercised against an <em>overload or resistance</em>; the overload is gradually increased in order to allow muscles to adapt. This allows for progressive strength increases over time.
Muscle fatigue is defined as a reduction in the ability to produce force due to exercise. This comprises:
- peripheral fatigue- due to changes at the junction between motor neurons and the muscle.
- central fatigue- caused by a reduced capacity to use voluntary force in relation to the capacity to use involuntary force
- and muscle damage- this is associated with several issues at the cellular level such as disrupted membranes and cytoskeletons; and tissue damage via torn muscle fibers, and collagen.
Overall, these may affect muscle fiber activation and the amount of force they are capable of producing- i.e. sustained strength. However, muscle fatigue can be greatly reduced via the maintenance of PRT. Also, apart from strength gains, PRT is <em>used for weight loss and muscle building</em>; common tools used in PRT include <em>free weights, elastic bands and exercise machines. </em>
It called the Pectoral muscles
The answer would be <span>Phagocytes. </span>
Cardiovascular fitness !! anything involving the heart / heart exercises are considered cardio !! hope this helps
