Causes of Cor Pulmonale. The lungs depend on the heart to transport blood from the body to the lungs. Pulmonary hypertension is a type of increased pressure in your lungâs arteries and your heartâs right ventricle. This increased pressure causes an ineffective transportation of blood to the lungs. Untreated pulmonary hypertension is the most common cause of cor pulmonale. Other conditions that can cause this health complication include: blood clots in the lungs.
The junction between a motor neuron's axon and the muscle cell membrane is called neuromuscular junction A motor neuron and all of the skeletal muscle cells it stimulates is called a
2) Synaptic Cleft: This is the narrow gap between the axon terminal of the presynaptic neuron, and the post-synaptic membrane of another excitable cell. It is filled with extracellular fluid. 3) Postsynaptic membrane: The membrane across the synaptic cleft is called the postsynaptic membrane.) A nerve impulse reaches the axon terminal of a presynaptic neuron; the membrane is depolarised by an action potential. 2) Depolarisation of the axon terminal during the action potential causes voltage sensitive calcium ion channels to open in the terminal knob.