Nervous System 2 Flashcards
1
Q
What is the automatic system?
A
- consists of nerves that carry messages to the heart, involuntary muscles, glands, and other internal organs.
- operates subconsciously
- helps maintain homeostasis
- regulates hr, blood pressure, digestion and more
2
Q
What is the sympathetic division?
A
- fight or flight
- prepares the body for strenuous physical activity
3
Q
Sympathetic Responses?
A
- increased HR
- dilated pupils
- increases sweat production
4
Q
Parasympathetic Responses?
A
- decreased HR
- constricts pupils
- increased saliva production
5
Q
What are the three main factors that affect our behavior, thoughts and feelings?
A
- genetics
- hormones
- drugs
6
Q
What are the endocrine glands?
A
- parathyroid gland
- thyroid gland
- testes / ovary
- pancreas
- pituitary gland
- thymus
- adrenal gland
7
Q
Function of adrenal glands?
A
- secrete adrenaline and noradrenaline
- keep us alert and prepare us for emergency situations
8
Q
Function of thyroid gland?
A
- secretes the hormone thyroxine
- regulates metabolic rate and body temp
9
Q
Function of pituitary gland?
A
-master gland
-secrets 8 hormones
Growth Hormone: stimulates growth
Follicle Stimulating Hormone: develops ovaries and sperm
Luteinizing Hormone: causes ovulation and secrets testosterone
10
Q
Function of Ovaries?
A
- Secretes estrogen
- regulates menstrual cycle
- development of female secondary sex characteristics
11
Q
Function of Testes?
A
- Secretes Testosterone
- stimulates sperm production
- development of male secondary sex characteristics
