MICROANATOMY

MUSCLE NERVE CARTILAGE BONE

PERIPHERAL NERVE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
fibers that carry the signal from the spinal cord to the effector organ (muscle)
A
afferent
B
efferent
C
diencephalon
D
reflex
Explanation: 

Detailed explanation-1: -The motor (efferent) division carries motor signals by way of efferent nerve fibers from the CNS to effectors (mainly glands and muscles). It can be further subdivided into somatic and visceral divisions. The somatic motor division carries signals to the skeletal muscles.

Detailed explanation-2: -Neurons carry messages from the brain via the spinal cord. The neurons that carry these messages to the muscles are called motor neurons. Each motor neuron ending sits very close to a muscle fibre. Where they sit together is called a neuromuscular junction.

Detailed explanation-3: -Afferent neurons carry information from sensory receptors of the skin and other organs to the central nervous system (i.e., brain and spinal cord), whereas efferent neurons carry motor information away from the central nervous system to the muscles and glands of the body.

Detailed explanation-4: -The efferent fiber is a long process projecting far from the neuron’s body that carries nerve impulses away from the central nervous system toward the peripheral effector organs (mainly muscles and glands). A bundle of these fibers is called an efferent nerve (if it connects to muscles, then it is a motor nerve).

Detailed explanation-5: -Efferent or motor neurons carry impulses away from the spinal cord to effectors.

There is 1 question to complete.