MICROANATOMY

MUSCLE NERVE CARTILAGE BONE

SKELETAL MUSCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The gap between the motor neuron and the muscle fiber it supplies at the neuromuscular junction is called the ____
A
ATP
B
synaptic cleft
C
tetanus
D
motor unit
Explanation: 

Detailed explanation-1: -Synaptic Cleft / Junctional Cleft: The space between the nerve terminal and the plasma membrane of muscle is called synaptic/junctional cleft and measures ∼50 nm. It is the site where presynaptic neurotransmitters, ACh is released before it interacts with nicotinic ACh receptors on the motor endplate.

Detailed explanation-2: -The space between the two is known as the synaptic cleft.

Detailed explanation-3: -The synaptic cleft is the gap between the presynaptic terminal and the postsynaptic muscle membrane, which is filled with a specialized form of extracellular matrix called synaptic basal lamina (Sanes, 2003). This matrix is crucial for the alignment, organization and structural integrity of the NMJ.

Detailed explanation-4: -the narrow space between the synaptic terminal an the muscle fiber is the. synaptic cleft.

Detailed explanation-5: -The space between two neurons across which the impulse is transmitted by a neurotransmitter is known as synaptic cleft. The neuron that transmits the signals are known as presynaptic neurons and the neurons that receive the signal are known as postsynaptic neurons.

There is 1 question to complete.