Jumat, 26 Mei 2017

Phatophysiology Hypertansion Can Damage Blood Vessel, Kidneys, Heart and...

Phatophysiology Hypertansion Can Damage Blood Vessel, Kidneys, Heart and Brain

Some organ can damage seriously because blood pressure or hypertension. Like kidney (function regulate some water in your body), heart, brain. Blood vessel suply much blood, If blood vessel damage this organ will damage too. Normally inert blood vessel or endothelium are relaxed, resists  clots - coagulated blood (it will not good if any cholesterol)

Senin, 08 Mei 2017

Step By Step Gluconeogenesis Process In Human


Step By Step Gluconeogenesis Process In Human

Gluconeogenesis is the metabolic process by which organisms produce sugars (namely glucose) for catabolic reactions from non-carbohydrate precursors. Glucose is the only energy source used by the brain (with the exception of ketone bodies during times of fasting), testes, erythrocytes, and kidney medulla. In mammals this process occurs in the liver and kidneys.

Senin, 01 Mei 2017

Neuromuscular Junction Process in Human Nervous System

Neuromuscular Junction Process in Human Nervous System

The synapse or connection between a motor neuron and a skeletal muscle is known as neuromuscular junction. Communication happens between the neuron and muscle via nerve cells. Due to this communication or transmission of signal, the muscle is able to contract or relax. It is the most widely studied synapse and it is comparatively easier to understand and analyze as well.

We shall look in detail about the neuromuscular junction, what it consists of, what are its functions as well as some disorders associated with the neuromuscular junction.

Senin, 17 April 2017

Factors Affecting Human Muscle Tension

Factors Affecting Human Muscle Tension

Factors affecting development of muscle muscle tension:
1. Frequency of stimulation
2. Number of motor units recruited
3. Degree of muscle stretch
The strength of a muscle contraction is determined not only by the frequency of stimulation, but also by the number and size of motor units

Rabu, 12 April 2017

How Mechanism Summation of Multiple Stimuli in Skeletal Muscle



How Mechanism Summation of Multiple Stimuli in Skeletal Muscle

Five region when multiple stimuli
1. Treppe (Staircase Effect)
First few contractions demonstrate treppe. Even though the strength of contraction increased, relaxation was complete (temporal summation not responsible). Increase in tension may result from increased muscle warming and efficiency of enzymes.
2. Temporal Summation
After the first five stimuli, frequency was increased, which caused temporal summation. Resulted in a continual increase in tensions as one contraction was added to the previous contraction. Increase in tension may result from increased availability of intracellular calcium.
3. Incomplete Tetanus
4. Complete Tetanus
5. Fatigue



Senin, 10 April 2017

Temporal summation of two stimuli in human skeletal muscle

Temporal summation of two stimuli
- Second stimulus of same intensity is applied
- Applied before completion of relaxation
- Second contraction added to first contraction
- Temporal (wave) summation increases muscle tension

Kamis, 06 April 2017

How Mechanism of Human Muscle Twitch



How Mechanism of Human Muscle Twitch

A Muscle contraction in response to a single stimulus of adequate strength is called a muscle twitch.
A complete muscle twitch is divided into three phases: Latent period, contracted period and relaxation period.



Selasa, 04 April 2017

How Metabolism Red Muscle Fibers

How Metabolism Red Muscle Fibers

Features of Red Muscle Fibers
- About half the diameter of white fibers
- Dark red in color due to large quantity of myoglobin
- Surrounded by many capillaries
- Numerous mitochondria
- Low glycogen content
To synthesize ATP, red muscle fibers mainly use the Krebs cycle and oxidative phosphorylation, which require mitochondria and oxygen. Oxygen come from the abundant myoglobin and capillaries. Oxygen diffuses rapidly throughout these small cells.

Sabtu, 01 April 2017

Metabolism in Human White Muscle Fibers



Metabolism in Human White Muscle Fibers

Because our bodies use muscles for wide range of activities, different types of muscle fibers use different methods of synthesizing ATP, which are reflected in their cellular structure.

This cross-section of skeletal muscle shows two major types of muscle cells which differ in size and coloration. These structural differences relate to their method of metabolism.

Features of White Muscle Fibers
- Large in Diameter
-  Light in color due to reduced myoglobin
- Surrounded by few capillaries
- Relatively few mitochondria
- High glycogen content

Kamis, 30 Maret 2017

three process of synthesizing ATP (creatine phosphate, glycolysis, krebs...

three process of synthesizing ATP (creatine phosphate, glycolysis and krebs cycle and oxidative phosphorylation)

Creatine phosphate uses a process called substrate phosphorylation to transfer energy and a phosphate group to ADP, forming ATP. The amount of creatine phosphate is limited and is rapidly depleted during warm-up activities.
For each glucose molecule processed, the net end products of glycolysis include : 2 ATP molecules and 2 pyruvic acid molecules.
During anaerobic conditions the muscle cell has an inadequate oxygen supply, causing pyruvic acid to be converted into lactic acid. Excess lactid acid quickly brings about muscle fatigue.

Senin, 27 Maret 2017

How Food is Digested in The Body



How Food is Digested in The Body
The digestive system is the organ system in the human receiving food, digesting it into energy and nutrients, as well as get the rest of the process through the rectum. Specifically, the digestive system serves to take the food, breaking it into smaller nutrient molecules, the molecules absorb into the bloodstream, then cleanse the body of waste products.
The digestive tract is a continuous channel in the form of a tube surrounded by muscles. Digestive tract to digest food, break it into smaller parts and absorb the section towards the blood vessels. The organs were included in her are: the mouth, pharynx, esophagus, stomach, small intestine and colon. From the large intestine of food will be discharged out of the body through the anus.