Researchers from the Massachusetts Institute of Technology (MIT) report in the Journal of Neuroscience that a chemical receptor in the brain associated with learning and memory might also play a vital role in fetal development of the respiratory system. The study proposes a possible connection to Sudden Infant Death Syndrome (SIDS) and preemie problems.
Dr. Chi-Sang […]
Here is an article that talks about how cells store and release energy. It deviates from the traditional use of chemical storehouse cells because this was observed in sperm cells of horse shoe crabs.
Fertilization relies on sperm cells for most, if not all, sexually reproductive animals. They need to break into the protective surrounding of […]
The stomach, in human biology, is the portion of the alimentary canal that is richly supplied with blood vessels. Both the quantity of blood delivered to the stomach and the richness of the intramural gastric vascular anastomotic network are impressive. The large majority of the gastric blood supply is from the celiac axis via four […]
There are four distinct layers of the gastric wall in human biology: mucosa, submucosa, muscularis propria, and serosa. The inner layer of the stomach is the mucosa, which is lined with columnar epithelial cells of various types. Beneath the basement membrane of the epithelial cells is the lamina propria, which contains connective tissue, blood vessels, […]
In human biology, the stomach is a remarkable organ with important digestive, nutritional, and endocrine functions. Its biological function is to store and facilitate the digestion and absorption of ingested food and helps regulate appetite. Treatable diseases of the stomach are common and the stomach is accessible and relatively forgiving; thus it is a favorite […]
Muscles provide the mass and shape of the human body and the joints afford flexibility.
There are three types of muscles in the human body- the skeletal muscles which are used to produce movements of the body, the smooth muscles which are found in the small and large intestines, urinary bladder, stomach and uterus, and the […]
In studying the human body, there are some basic anatomical structures to be learned that will greatly help the medical student. The basic anatomical structures are- the skin, the fasciae, the muscle, the joints, the ligaments, the bursae, the synovial sheath, the blood vessels, the lymphatic system, the nervous system, the mucous and serous membrane, […]
The site where two or more bones come together whether or not there is movement between them. Joints are classified according to the tissues that lie between the bones as fibrous joints, cartilaginous joints, and synovial joints.
The articulating surfaces of the bones are joined by fibrous tissue, and thus very little movement is possible. The […]
The Nervous System of man is divided into two main parts or divisions, the central nervous system consisting of the brain and spinal cord, and the peripheral nervous system consisting of the cranial and spinal nerves and their associated ganglia.
The central nervous system is composed of large numbers of nerve cells and their processes supported […]
The Autonomic Nervous System is the part of the nervous system concerned with the innervation of involuntary structures such as the heart, smooth muscles, and glands throughout the body. It is distributed throughout the central and peripheral nervous system.
The autonomic system may be divided into two parts, the sympathetic and the parasympathetic, and in both […]
