sex organs

In addition to producing gametes, the female ovaries and male testes also secrete hormones. These hormones are called sex hormones. The secretion of sex hormones by the gonads is controlled by pituitary gland hormones such as FSH and LH. While both sexes make some of each of the hormones, typically male testes secrete primarily androgen's including testosterone.

Later in life Men have a decrease in testosterone and may need supplements or a combination of eating right and going to the gym regularly. I find that for me running three miles a week and eating healthy gives me more of a sex drive. I recommend not taking steroidal hormones that aren't FDA approved because long term effects are not known.

Pancreas

This organ has two functions. It serves as a ducted gland, secreting digestive enzymes into the small intestine. The pancreas also serves as a ductless gland in that the islets of Langerhans secrete insulin and glucagon to regulate the blood sugar level. The islet cells secrete glucagon, which tells the liver to take carbohydrate out of storage to raise a low blood sugar level.
I have been tested once for diabetes and my doctor had to put me on a better diet then I was on. The doctor originally though my body wasn't producing enough insulin which would cause diabetes. So lucky for me I don't have diabetes because I exercise often and eat healthier.

Thyroid hormones regulate metabolism, therefore body temperature and weight. The thyroid hormones contain iodine, which the thyroid needs in order to manufacture these hormones. If a person lacks iodine in his/her diet, the thyroid cannot make the hormones, causing a deficiency. In response to the body’s feedback loops calling for more thyroid hormones, the thyroid gland then enlarges to attempt to compensate (The body’s plan here is if it’s bigger it can make more, but that doesn’t help if there isn’t enough iodine.). This disorder is called goiter.
I have always been a seafood person and since I dont live on the cost I have to make sure I get enough tuna, lobster, and seaweed in my diet to avoid the above disorder called goiter. Once the government added iodine to our salts this has alleviated many problems.

Parts of the brain

The brain.... I learned about the frontal lobe, parietal lobe, and occipital lobe and each of there locations. We then went into learning what the falx cerebelle was and this seperates the cerebellum hemisphers. Within the cerebellum is the muscle motor activity is coordinated from and the pre central gyrus is where the muscle impulses originate. We also learned locations of several parts of the brain like corpus callosum, septum pellucidum, fornix, anterior cerebral artery, frontal lobe, anterior commissure, tuberal area, fourth ventricle, cerebellum, and hypothalamus which to me was the most interesting of all. Here is a important control and integrative center. The hypothalmic may be stumulated by sensory information from the cerebrom, brain stem, and spinal cord, changes in the csf and lastle a chemical stimuli in the circulating blood. I recommend a Sagittal section view to me this was most helpful in understaning and seeing all the parts.

wk # 2&3

Today we talked about the Central nervous system. (CNS) Which is a portion of the nervous system that consists of the brain and spinal cord. We learned functions, mafor parts, meninges, nourishment, organization, skeletal prtection, and damage/repair. What i found to be most interesting is the funtions of the neurons which are responsibel for most of the unique funtions of the nervous system. The cell body contains a nucleus surrounded by cytoplasm within the cplasm organelles like lysomomers, mitochondria, and the Golgi complex are found here.
Most nuerons have an imput regions called dendrites that recieve information and integration region the cell body that analyzes all the information. Then the output is the axon and here the information is transmited toward another cell.

What I learned today....

Today I learned that neurons have three parts. The first is the cell body, dendrites, and an axon. All cell bodies contain a nucleus. Today Dana broke down the neuron into 1,2, and 3 and explained how the neuron can be found in one of three natural states.
The above was'nt what was the most interesting to me, but what I really found interesting was both the voltage regulated channel (VRC) and the chemical regulated channel (CRC). I learned that in the CRC a chemical called acetylcholine causes the gate to open. CRC is also always open and refered to as the slow gate. The receptor is the channel. The VRC is a charge difference that is positive and the voltage is in the axon hillock. The VRC is refered to the fastgate which here sodium ions influx (move inward).
I also learned today that there are two molecular motors the kinesin which moves forward and binds and the dyenin which moves backwards and returns. Lastly I learned that Temporal equals time and spatial relates to numbers and these both are verbalized as summation events.