Endocrine System

Learning Objective 1: 18.1 Compare control of body functions by the nervous system and endocrine system.

The endocrine system is the system of the body in which releases hormones into the bloodstream. The hormones then cause different reactions within the body, and these reactions shape

The central nervous system is composed of the brain and spinal cord and the peripheral nervous system is composed of the body’s sensory receptors, muscles, and glands. The peripheral nervous system is made up of somatic and automatic. Somatic is the voluntary movement of our skeletal muscles. When we hear the bell ring, our somatic nervous system carries the message to the brain and the brain reports back to our muscles. The autonomic nervous system controls our glands and muscles in our internal organs. Some things this nervous system does is taking control of our digestive system and our heart beat. There are two functions of the autonomic nervous system- the sympathetic and the parasympathetic nervous system. The sympathetic nervous system arouses and expands energy. If someone gets excited or nervous in a situation, their blood pressure will rise, their digestion will slow down, their heartbeat will accelerate, their blood sugar will rise, and they will sweat to cool down. The parasympathetic is the opposite. It tries to conserve energy by decreasing your heartbeat, lowering your blood sugar, and so

The nervous system uses sensory receptors, nerves and your brain to control your cells, and acts quickly. The endocrine system uses your circulatory system and hormones to care for your cells and acts more slowly. The reproductive system and endocrine systems use hormones to function. The nervous and endocrine systems are connected by sending information to the hypothalamus and uses the autonomic nervous system to transmit what activity needs to take place in the body. This activity might be what hormones are needed, or what sensations the body feels. While the nervous and endocrine systems send information to the hypothalamus, the reproductive system receives information from the hypothalamus. So all three systems do work together, although

This system enables specific signals to be sent and received by cells and tissues that are distant from one another. The endocrine system controls activities that take place in the body by releasing mediators, which are known as hormones. A mediator molecule can also be known as a hormone and it is released into one specific part of the body and normalizes the activity of cells in other parts of the body. Once a hormone is released it is transported to the target cells through the circulating blood in our bodies. Hormones in the body are significant in the processes of regulating growth, development, metabolism and

Peptides hormones are usually large and hydrophilic charged, and cannot diffuse across a plasma membrane. Therefore the receptors they bind to are on the cell surface. When the peptide hormone binds to the receptor of the cells surface of the target cell it activates the receptor and as a result transmit a signal to the cellular interior. The purpose of this signal can be to turn on a protein kinase that phosphorylates (which is a modification of proteins in which an amino acid residue is phosphorylated) specific proteins and alter their activity however it could also release a second messenger into the cell this cell can be calcium, this amplifies the signal and changes many different cellular

The adrenal medulla is stimulated by the sympathetic nervous system to release norepinephrane and epinephrine in response to stress.

The endocrine system uses chemical messengers called hormones that are transported by the circulatory system (blood). They act on target cells that may be anywhere in the body.

The endocrine system releases hormones that send messages throughout the body much like the nervous system. These hormones travel slowly, increasing or decreasing the level of chemicals in the blood. These messages last longer than electrical impulses and cause a more generalized impact in the

The endocrine system includes of specific tissues and glands which secrete chemical messengers to the body called hormones. The glands are aided by the nervous system and chemical receptors in the blood and other hormones produced by other glands. Hormones regulate many functions of the body such as cellular metabolism, reproduction, sugar and mineral homeostasis and digestion.

Explain the characteristics of the endocrine system that make its reactions different from those of the nervous system.

The endocrine system is a group of glands distributed throughout the human body. This group of glands secretes substances called hormones. These hormones are dumping into the bloodstream (Shier, Butler & Lewis, 2009). The endocrine system does not have a single anatomic location. It is dispersed throughout the human body. The final purpose of this process is to control, regulate, and coordinate the functioning of the human body. Some body functions can be activated or inhibited by hormones, which are secreted in very small quantities. The hormone related diseases may be due to hyper secretion, or a hypo secretion. The hormones secreted by the endocrine glands regulate growth, development and function of many tissues, and coordinate the

The human body contains various structures and organs that allow regulations and maintenance of homeostasis. Foundation is built through the framework of the skeletal system, motion is possible due to the muscular system humans have and other body systems that allow humans to perform daily actions. All of this anatomical structures are possible due to the two main controlling system found in the body; the nervous system and endocrine system. The nervous system can be considered as information processor of the human body, but for it to be more effective in transferring and processing information; it works in tandem with the endocrine system. The purpose of the endocrine system is to act in response to the information the

The endocrine system in the human body stores a chemical known as hormones. Hormones are released by endocrine glands into the bloodstream and travel throughout the body carrying messages. A hormonal impulse is similar to a nerve impulse only much slower. The messages carried by the hormones trigger different behaviors. Hormones can affect behavior in many ways such as: Mental activity or tiredness, boredom or excitement, sexual

The nervous and endocrine systems are what control most of the body. The nervous system includes the brain, spinal, cord and nerves. The endocrine system consists of various hormonal glands such as the pituitary. These two systems interact closely since they both have a part in controlling