1/29/2024 0 Comments How to study endocrine hormones![]() ![]() These hormonal messages are “broadcast” to all the cells of the body, and they can travel only as quickly as the blood flows through the cardiovascular system. In fact, the fastest nerve impulses travel at speeds greater than 100 meters per second! Compare this to the chemical messages carried by the hormones that are secreted into the blood by endocrine glands (below). In this way, the information transmitted by the nervous system is specific to particular cells and is transmitted very rapidly. A cell that receives nerve impulses from a neuron may be excited to perform a function, inhibited from carrying out an action, or otherwise controlled. This chemical signal then influences the receiving cell in either an excitatory or inhibitory manner. ![]() When a neuron transmits an electrical signal, called a nerve impulse (or action potential), it travels down the axon and causes neurotransmitters to be released into the synapse. Briefly, neurons in the nervous system communicate via electrical and chemical signals. Nerve impulses are covered in depth in the nervous system communication chapter. \)Ĭommunication in the Nervous System versus the Endocrine System ![]()
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