Interaction
Name the interaction systems.
Sensory system, endocrine system, nervous system and locomotor system.
What are the substances produced by the endocrine glands?
Hormones
What two glands are located under the throat?
Thyroid and parathyroid.
What is the function of hormones?
To communicate information from one cell to another.
What hormone is responsible for controlling the sleep-wake cycle?
Melatonin
Complete the sentence:
Interaction is the set of processes through which living beings exchange _____________ with the environment.
Information
What is the difference between endocrine and exocrine gland?
Exocrine gland releases substances to the external environment.
Endocrine gland releases hormones into the blood.
Which gland produces the hormones that regulate the level of glucose in the blood?
The pancreatic islets.
Hormones work at a very low concentration in the blood.
True or false?
True.
What is the main target organ for growth hormone?
Bones.
What is the combination of the hormonal system and the nervous system called?
Neuroendocrine system
What are the 3 main glands of the brain?
Epiphysis, hypothalamus and
hypophysis.
What gland produces prolactin?
The hypophysis (pituitary gland).
What kinds of foods do you get the most hormones from?
Hormones are not obtained from food, they are made by the organism itself.
What hormone is responsible for increasing calcium levels in the blood?
Parathyroid hormone.
What is the name of the pathways that carry the information from the receptors to the integration center?
Afferent pathways
The pancreas is a mixed gland, what does that mean?
That it is formed by an endocrine and an exocrine part.
What hormones are produced by the gonads?
Testosterone by the testicles.
Estrogens and progesterone by the ovaries.
In which part of the cell are most hormone receptors found?
In the plasma membrane.
What is the main function of progesterone?
Control and maintain pregnancy.
What are the endocrine and nervous system effectors?
Endocrine - target organs
Nervous - muscles and glands
Explain what effect the negative feedback regulation has.
The response negatively affects the stimulus, decreasing it.
What 3 hormones are produced by the adrenal glands?
Cortisone, aldosterone and adrenalin.
Give an example of two hormones that act by activating and inhibiting the same process.
Calcitonin and parathyroid hormone (calcium regulation)
or
Insulin and glucagon (glucose regulation).
Which two hormones are responsible for reducing the loss of water in the urine?
Antidiuretic hormone (vasopressin) and aldosterone.