Question

Write short notes on (a) Platelets and (b) Synapse

Answer 1

Dear Student,

● Platelets -

• They are also called thrombocytes as they are essntial in blood clotting.
• Normal platelet count should be in range of 150000-450000 platelets/ml blood.
• Functions of platelets are -

1. It stops bleeding by forming platelets plug.
2. Platelets helps in both clot formation as well as clot retraction.
3. They maintain integrity of vascular endothelium.

● Synapse -

• Synapse is a junction between two neurons that allow transfer of information from one neuron to another neuron.
• Transfer of information/signals takes place at synapse between two neurons.
• It can be classified into chemical synapse and electrical synapse.
• Synapse in which information is transferred by electrical impulses is called electrical synapse.
• Synapse in which information is transferred by hormones is called chemical synapse.

Answer 2

Platelets:

Platelet is considered to be one blood corpuscles that originate from the megakaryocyte cells of the bone marrow and is associated with the homeostasis of the blood. It secretes platelet-derived thromboplastin that plays a major role in blood clotting.

Synapse:

Synapse is the junction between the two neurons, between the axon of the presynaptic neuron and the dendrite of the postsynaptic neuron. This is a junction of the neural fatigue, which relays the neural impulse chemically.