Based on their measurements, the average shoulder width for American women was 14.4 inches (36.7 cm). Based on the shoulder measurements of 7,476 men aged 20 years and older taken during the same time period, the average shoulder width of men in the United States was 16.1 inches (41.1 cm).

Muscle tissue can be both voluntary and involuntary, with involuntary muscle tissue found in organs like the heart and digestive system. The high presence of mitochondria in muscle tissue is necessary to provide the energy required for muscle contraction and movement.

Involuntary muscle cells are called involuntary because they contract without conscious control. This means that they work automatically in response to stimuli from the nervous system or hormones, without us having to think about or actively control their movement. Examples include smooth muscle in the walls of internal organs.

Food enters the clam through its mouth and moves to the stomach, where digestion begins. Next, the nutrients are absorbed in the digestive gland and waste is excreted through the anus. The process is facilitated by cilia and muscular contractions within the digestive system.

The medical terminology combining form for the common bile duct is "choledoch/o."

Aging of bitumen, common in road construction, affects its properties like stiffness, viscosity, and durability. Over time, bitumen can harden and become more brittle due to oxidation and volatilization of its lighter components. This can lead to cracks and reduced performance in road surfaces. Regular maintenance and treatments can help mitigate the effects of aging on bitumen.

The esophagus is a muscular tube that connects the throat to the stomach. When you swallow, muscles in the esophagus contract to push food down towards the stomach through a series of coordinated muscle movements called peristalsis. The esophageal sphincter at the lower end of the esophagus opens to allow food to enter the stomach and then closes to prevent backflow.

Yes, the digestive system has its own nervous system called the enteric nervous system. This network of neurons controls the function of the gastrointestinal tract independently of the central nervous system. The enteric nervous system helps regulate digestion, absorption of nutrients, and movement of the intestines.

The digestive system extracts energy from food through the process of digestion, where food is broken down into nutrients that can be absorbed by the body. The nutrients are then used by cells to produce energy through a process called cellular respiration.

Yes, eating a large amount of carrots can lead to your poop turning orange due to the presence of beta-carotene, a pigment found in carrots. This is a normal and harmless occurrence.

It is generally healthy to have regular bowel movements, but the frequency can vary among individuals. As long as you are not experiencing any discomfort or other symptoms, there is usually no cause for concern. Eating a balanced diet with fiber and staying hydrated can help support regular bowel movements.

Lactose is broken down in the body by an enzyme called lactase, which is produced in the small intestine. Lactase breaks down lactose into its two component sugars, glucose and galactose, which can then be absorbed by the body for energy. If a person is deficient in lactase, they may experience lactose intolerance.

Mixing food with saliva helps to break down carbohydrates in the food into simpler sugars, which can then be detected by taste buds. Saliva also contains enzymes that aid in digestion, making it easier for the body to absorb nutrients from the food we eat.

Swimming after eating may cause some people to experience cramps due to blood being diverted towards the stomach for digestion, potentially affecting muscle function. This can increase the risk of drowning as it may compromise your ability to swim effectively. It's generally recommended to wait at least 30 minutes to an hour after eating before swimming to reduce this risk.

Watery poop can be caused by consuming foods or drinks that have a high water content, infections such as viral gastroenteritis, bacterial infections like E. coli or Salmonella, or conditions like irritable bowel syndrome. It can also be a side effect of medications, such as antibiotics. If you have persistent watery poop, it's important to consult a healthcare provider for proper evaluation and treatment.

The involuntary motion that moves food through the alimentary canal is called peristalsis and is a wavelike contraction and relaxation of the intestinal wall smooth muscles. It pushes food along the intestine.

Broken down food is absorbed into the bloodstream through the lining of the intestines. Nutrients like carbohydrates, proteins, and fats are then transported to different cells in the body where they are used for energy, growth, repair, and maintenance. Waste products are eliminated through the kidneys and intestines.

Human fecal matter is composed of water (about 75%), bacteria, undigested food particles, fiber, fats, mucus, dead cells, and other waste products. The specific composition can vary based on diet, hydration levels, and overall health.

The process of swallowing is called deglutition. It involves voluntary and involuntary muscles working together to move food or liquid from the mouth to the stomach.

The process of breaking down food for energy using oxygen is called cellular respiration. This process occurs in mitochondria within cells and involves the conversion of glucose and oxygen into ATP, the main energy currency of cells. Through cellular respiration, cells generate energy, carbon dioxide, and water as byproducts.

Foods high in fat and protein tend to stay in the body longer, as they take longer to digest. Examples include red meat, nuts, and whole milk products. Foods high in fiber also stay in the body longer because they are more difficult to digest.

The end products of protein metabolism are amino acids, which are used for various cellular functions such as building new proteins, energy production, and synthesis of other molecules like hormones and neurotransmitters. Any excess amino acids that are not needed by the body are typically broken down and excreted as waste products.

Chewing food typically takes about 5-30 seconds per bite, depending on the texture and size of the food. It's recommended to chew each bite thoroughly to aid digestion and promote better nutrient absorption.

Food is transformed into a small lump called a bolus through the process of chewing and mixing it with saliva in the mouth. The mechanical and chemical breakdown of food in the mouth helps form the bolus, which is then swallowed and passes through the esophagus into the stomach where further digestion occurs.

The stomach is the storage holder, and keeps food in there for about 2 hours. The stomach turns everything into thick liquid or paste.

Undigested food is located in the stomach. The most common method for removing it is called, "purging." where the finger or an object such as a spoon, is inserted into ones throat just far enough to trip the gag reflex.