d. Zach’s G.I. tract needs the substance to assist in the breakdown of food and for absorption. Epithelial cells extend into the lamina where they form secretory folds called gastric glands. Several of these glands open into the gastric pits and secretions from these glands flow into the pits. E. If Zach’s only normal digestive enzymes from his mouth, what
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.
Endocrine glands have a rich blood supply through which hormones travel to reach their target organs. Hormones alter the metabolism of target organs by increasing or decreasing their activity. These changes in activity are strictly balanced to maintain homeostasis (a stable internal environment). Many endocrine glands are linked to neural control centers by homeostatic feedback mechanisms. The two types of feedback mechanisms are negative feedback and positive feedback.
Identify three mechanical digestion activities. a. Chewing b. Mixing of food with saliva by tongue c. Churning food in the stomach and segmentation of the intestines 3. Name two feedback loops that regulate digestive system smooth muscle responsible for propulsive and mixing movements. Hormonal feedback loops and neural feedback loops. Neural Regulation of Mechanical Digestion 4.
The hippocampus on the other side is responsible for the production of corticosteroids (chemicals that produce physiological responses to stimuli). How the mind creates memories is controlled by the hippocampus. So as to work efficiently, the amygdala and the hippocampus rely on each other greatly. The amygdala regulates the responses to stimuli and the hippocampus uses these responses in the formation of both short-term and long-term memories. Damage to the amygdala or hippocampus causes loss of emotions and memory respectively.
Produces essential proteins and clotting factors for the blood and regulates metabolism and cholesterol. Gall Bladder – Stores bile secreted by liver. Bile is used to help dissolve fats in the small intestine. Pancreas – Functions both as an exocrine gland and an endocrine gland. Exocrine portion secretes digestive enzymes carried to the duodenum.
Lipids are insoluble within water, they have high energy content and can be metabolized to release calories, but they have many other uses as well. Lipids help to create lasting structures within an individual’s body; lipids are also electrical insulators and are needed Bile is secreted from the gall bladder into the digestive tract, and lipase is secreted for
If you guessed the larynx, you would be correct. Not only is the larynx responsible for producing our voice, it also helps us swallow and breathe (Larynx, n.d.). Passing through the larynx, we enter the pharynx. Pharynx is just the medical term for the throat. Who knew that the pharynx is part of the respiratory and the digestive system?
Fingerlike extensions in the intestinal wall that increase surface area H & N 3. Two anatomical regions where mechanical digestion
More information about scoring 1. Match the structure with its function. Option Your Answer 1.1 Correct occipital lobe C. vision 1.2 Correct pineal gland B. secretes melatonin; involved in the body clock 1.3 Correct medulla oblongata D. contains vital nuclei for ventilation, blood pressure, and heart activity 1.4 Correct postcentral gyrus F. primary somatic sensory cortex 1.5 Correct parietal lobe E. body sense, perception, and speech 1.6 Correct vagus nerve A. controls organs; main parasympathetic nerve 2. Match the structure with its function. Option Your Answer 2.1 Correct thalamus B. processing information going to cerebrum 2.2 Correct cerebellum D. motor coordination, balance 2.3 Correct corticospinal tract C. carries direct orders from cerebrum to ventral horn motor