Anatomy and Physiology 1. Positive feedback loops a. Occurs when the effector\'s
ID: 3504554 • Letter: A
Question
Anatomy and Physiology
1. Positive feedback loops
a. Occurs when the effector's activity____________in response to a stimulus. It______the initial stimulus.
2. Structure and ________Are Related at all levels of organization
3. List two examples of how form follows function within the human body.
4. A gradient is present any time _______of something exists in one area than another and the two areas are_________________.
5. Communication between cells of the body occurs via _______________ signals or _____________messengers
6. Given an example of cell-cell cimmunication.
7. List 3 organs in each organ system and name 3 functions of each organ system.
Explanation / Answer
1. a) increases, reinforces/ augments [ positive feedback means increased effector activity, which is an augmentation of the initial stimulus ].
2. Function. [ any organization is intimately related to its structure and its function, ie skin structure is such that it functions as a barrier to the external environment]
3. Blood vessels are hollow(form) to allow blood flow( function), Teeth are strong so that we can chew hard food.
4. More, connected
5.electrical, chemical
6. Acetylcholine released from one neuron to communicate with other neuron cell or muscle cell.
7.
Tongue: taste sensation,
Liver: digestion of lipid
Somach: digestion of protein, carbohydrate.
Kidney: filters waste from blood, acid-base balance
Ureter: helps to expel urine out of body
Bladder: stores urine for voiding.
Nose: removes dust particle from the air before entering into the trachea
Trachea: coveys air to the lung.
Lungs: gaseous exchange
Digestive System Tongue, Liver, stomachTongue: taste sensation,
Liver: digestion of lipid
Somach: digestion of protein, carbohydrate.
Urinary system Kidney, Ureter, BladderKidney: filters waste from blood, acid-base balance
Ureter: helps to expel urine out of body
Bladder: stores urine for voiding.
Respiratory system Nose, trachea, lungNose: removes dust particle from the air before entering into the trachea
Trachea: coveys air to the lung.
Lungs: gaseous exchange