is confusion in understanding of organs and organ systems.
Organs are: (in our body)
larynx, trachea, bronchi, pleurae, lungs, mouth, fauces,
pharynx, esophagus, abdomen, stomach, intestines small and large, liver,
pancreas, kidneys, ureters, urinary bladder, various glands, reproductive
organs, organs related to our senses, other organs related to brain & nerves,
Organ systems are (in our body)
Circulatory systems (Cardiovascular system for blood, and the
Lymphatic system), Digestive system, Endocrine system (communication within
body), excretory system (fluid and electrolyte balance – urinary system), Nervous
system (collection and transfer and processing of information), immune system (defence
against diseases), muscular system, Integumentary system(skin, hair, breasts),
reproductive system, respiratory system, skeletal system
Organs involved in hunger sensation are
intestines, pancreas, hypothalamus in the brain, ...
involved in hunger sensation are
Digestive system, Endocrine system, Nervous system, Circulatory
Our body and system feels the urge and need to eat food. This
sensation is called hunger.
Digestive system maintains the sugar levels in the blood. When the
level falls below a certain threshold (or when stomach is empty), a harmone Ghrelin
is secreted in the stomach. Ghrelin is also called the hunger harmone. It is
produced in gastro-intestinal tract. After eating food, the stomach gets
stretched the ghrelin secretion stops. Ghrelin acts on the hypothalamic
brain cells of our central nervous system.
After about half a day of digestion of food, the stomach muscles start
to contract and cause pain. These are called hunger pangs.