They are elongated and column shaped. The nuclei are elongated and and usually found towards the base of the cells. They form the lining of the stomach and intestines. They secrete mucus to keep the surface smooth. Ciliated Columnar Epithelium are simple columnar epithelial cells but they have fine, hair like cilia on their free surfaces.
Which parts of the frog’s nervous system can be observed in its abdominal cavity and hind leg? A. The vertebrae contained the spinal cord is visible. You can also see the spinal cord branch into two cords. One nerve cord runs to the right leg and one nerve cord runs to the left leg.
The kidney is surrounded by a capsule membrane, each of these membranes are topped by the conical adrenal gland. Both the kidneys and adrenal glands are coated in adipose tissue. Gross anatomy When the kidney is presented in a longitudinal section it displays an outer darker cortex and an inner paler medulla. The composition of the medulla is made up of cone shaped pyramids known as medullay pyramids, the tip of these cones are pointed into the area where the ureter connects the kidney. “The medulla is further divided into numerous sections called the medullary pyramids.”This region is known as the pelvis of the kidney.
The pH of the stomach is 1-2 this is strongly acid. The epithelial lining contains goblet cells which help the stomach from eroding. The inner layer of the stomach is known as the mucosa, and is made of mucus membrane, this protects the stomach from being digested. Areolar Tissue- This tissue cushions and protects organs, connecting different tissues and supporting blood vessels. It’s the most common tissue in the body.
The saliva which is contained in the mouth which is produces by the salivary glands begins to digest the food before the food is even swallowed. Saliva and the other chemicals which are produced along the way help speed up the digestive process which is called digestive enzymes. The mouth which is also known as the oral cavity is a specialized organ which receives food and breaks it into smaller pieces. The mouth is changed mechanically when biting and chewing food. In a humans mouth there are teeth and within a human they are four types of teeth which are used for different functions such as the incisor teeth are for biting and are found are the front of the mouth.
The lining itself consists of glandular epithelium, connective tissue, and blood vessels. The endometrium has two layers, the basal and inner functional layers. The functional layer, according to the uterine cycle, varies in thickness. It helps form the placenta, supplying the nutrients needed for the development of the embryo. The myometrium is a very thick, muscular, middle layer composed of smooth muscle.
It moves food through and mixing it with digestive secretions from the pancreas and liver. The duodenum is mainly responsible for the continuous breaking-down process, with the jejunum and ileum mainly responsible for absorption of nutrients into the bloodstream.
The main function of the pituitary gland is to regulate the human growth hormone (HGH) and weight; main controller along with the genes of final height of a person. A malfunction in the pituitary gland can cause hypersecretion which results in gigantism or acromegaly and hypo secretion can result in dwarfism. The Thyroid Gland: The Thyroid gland is a very small vascular organ that is located in the neck. It consists of two lobes, one on each side of the trachea, just below the larynx or the voice box. The two lobes are
N UTRITION IN HUMANS Various organs of the digestive system are : Mouth Esophagus (food pipe ) Stomach Small intestine Large intestine Glands associated are : salivary glands Pancreas Liver. PROCESS OF DIGESTION - 1 ) STAGE INGESTION - food is taken into the mouth . 2 ) STAGE DIGESTION - digestion of the food begins in the mouth. * mouth cavity ( bucal cavity ) contains teeth + tongue + salivary glands . * teeth help in physical digestion by cutting the food into small pieces , chewing it and grinding it .
The digestive system is essentially a long, twisting tube that runs from the mouth to the anus, plus a few other organs (like the liver and pancreas) that produce or store digestive chemicals. What Is the Function of the Digestive System? The primary function of the digestive system is to break down the food we eat into smaller parts so the body can use them to build and nourish cells and provide energy. Structure of Human Digestive System * Mouth The mouth is the beginning of the digestive tract; and, in fact, digestion starts here when taking the first bite of food. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use.