Pituitary Gland & Epithalamus Flashcards
What are the two divisions of the pituitary gland?
Anterior pituitary and posterior pituitary.
What structure connects the pituitary gland to the hypothalamus?
The infundibulum.
What type of tissue is the anterior pituitary composed of?
Epithelial tissue.
What is the main function of the posterior pituitary?
To release hormones into the bloodstream.
Where is the epithalamus located?
Above the thalamus.
What endocrine gland is found in the epithalamus?
The pineal gland.
What hormone does the pineal gland release?
Melatonin.
What function does melatonin have?
It regulates the body clock and promotes sleepiness.
What is the name of the stalk that connects the hypothalamus to the pituitary gland?
A) Corpus callosum
B) Infundibulum
C) Optic chiasm
D) Substantia nigra
B) Infundibulum
Which part of the pituitary gland is made of epithelial tissue?
A) Posterior pituitary
B) Anterior pituitary
C) Pineal gland
D) Hypothalamus
Answer: B) Anterior pituitary
What is the main function of the posterior pituitary gland?
A) Producing melatonin
B) Sending motor commands
C) Releasing hormones into the bloodstream
D) Controlling reflex actions
C) Releasing hormones into the bloodstream
Where is the epithalamus located?
A) Below the thalamus
B) Above the thalamus
C) Inside the cerebellum
D) Next to the spinal cord
B) Above the thalamus
Which gland in the epithalamus regulates the sleep-wake cycle?
A) Pituitary gland
B) Hypothalamus
C) Pineal gland
D) Adrenal gland
C) Pineal gland
What hormone is secreted by the pineal gland?
A) Oxytocin
B) Melatonin
C) Adrenaline
D) Cortisol
B) Melatonin
What triggers the pineal gland to release melatonin?
A) Increased body temperature
B) Detection of darkness by the retina
C) Blood glucose levels
D) Loud noises
B) Detection of darkness by the retina
