The Workings Of The Endocrine System

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

In this experiment, contractions of the earthworm gut are measured in an organ bath with a force transducer. The effect of neurotransmitters and ionic concentrations on contraction strength and rate will be investigated.

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

*Endocrine glands produce – hormones, they work with other hormones to perform many functions including: control water & electrolyte balance, regulating carbohydrate metabolism, working as neurotransmitters, maintaining stress & inflammation, regulate reproductive functions

1. Neurons is a basic building block of the nervous system. The sensory nerves carry the message from body tissues to the brain and spinal chord to be processed. The motor neurons are then used to send instructions to the body tissue from the brain and spinal cord. Dendrites, which are connected to the body cell (soma) receive information and pass it through the axon. Myelin sheath covers the axon and helps speed the process. When triggered by a signals from our senses or other neurons, the neuron fires an impulse called the action potential. The resting potential is the neuron’s visual charge of positive

Diabetes is a chronic condition involving glucose in the blood. It is caused by a problem in the way the body makes or uses insulin. Insulin, a hormone that is necessary for glucose to move from the blood to the inside of the cells. The body cannot use the insulin for energy if it cannot get into the cells. Diabetes occurs when the body has too much blood glucose due to either the pancreas does not produce enough insulin or the body cannot effectively use the insulin produced.

The uterus of the rat that received injections of estrogen was found to weigh more than that of the rat that received injections of saline.

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

Please describe in detail the structures and features you observed on the adrenal gland slide

The endocrine system is inclusive of the glands of the body and the hormones they secrete. The secretion of these hormones helps to control numerous bodily functions. Hormones are chemicals that work in correlation with your body’s systems to function properly! These hormones are secreted directly into the bloodstream. Some of the systems controlled by the endocrine system are: reproduction, metabolism, growth and development, response to stimuli and homeostasis.

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

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

Here at RaeBost Memorial hospital our endocrinologist can diagnose and treat hormone problems and the complications that arise from them. Whether you are suffering from a genetic hormone imbalance such as neurofibromatosis (NF), or one from environmental factors such as hyponatremia we can help. Often times our patients are referred to our clinic because their primary physician suspects an underlying cause is related to hormone production. We often treat patients suffering from obesity, hirsutism, hyperthyroidism and even corticoadrenal insufficiency. Our Endocrinologist has ample experience with those that have been diagnosed with Cushing Syndrome, and Growth Hormone (GH) disorders whether its dwarfism, giantism or acromegaly.

The nervous and endocrine systems both function to maintain the stability of the internal environment. While both systems may work together as a single Neuroendocrine system, the systems may also work alone performing communications, integration and control within the body.

Reproductive physiology is comprised of many tightly coordinated functions of the endocrine system including the hypothalamus, pituitary and reproductive organs whose dynamic function plays several critical roles in growth and development as well was reproduction. The hypothalamic-pituitary-gonadal axis plays a critical role in the development and regulation of the reproductive system. These tightly regulated functions within the pituitary must respond to continuously changing signals from the central nervous system gonads and provide the quick responses. The hypothalamic-pituitary-gonadal axis is comprised of major hormones, including gonadotropin-releasing-hormone (GnRH), luteinizing hormone (LH) and follicular stimulating hormone (FSH) and operate through both positive and negative feedback loops in mammals.1 When toxicants affect any part of this axis’s function, either by altering cellular activity or the signals themselves, the physiology can impacted by immediate and downstream effects. An understanding of the endocrinology of male and female reproduction, is required to understand how toxicological effects can have severe consequences on reproductive physiology.