CHAPTER 3 Flashcards
(27 cards)
What are the two main components of the vertebrate nervous system?
Central nervous system (CNS) and peripheral nervous system (PNS)
The CNS consists of the brain and spinal cord, while the PNS includes nerves outside the brain and spinal cord.
What does the central nervous system (CNS) consist of?
Brain and spinal cord
The CNS is responsible for processing and transmitting information.
What does the peripheral nervous system (PNS) consist of?
Nerves outside the brain and spinal cord
The PNS connects the CNS to the limbs and organs.
What are the two divisions of the peripheral nervous system?
- Somatic nervous system
- Autonomic nervous system
The somatic nervous system controls voluntary movements, while the autonomic nervous system regulates involuntary functions.
What is the function of the somatic nervous system?
Conveys messages from sense organs to the CNS and from the CNS to muscles and glands
It is responsible for voluntary control of body movements.
What does the autonomic nervous system control?
Heart, intestines, and other organs
It regulates involuntary physiological functions.
What are the two main components of the vertebrate nervous system?
Central nervous system (CNS) and peripheral nervous system (PNS)
The CNS consists of the brain and spinal cord, while the PNS includes all nerves outside the CNS.
What does the central nervous system (CNS) consist of?
Brain and spinal cord
What does the peripheral nervous system (PNS) consist of?
Nerves outside the brain and spinal cord
What are the two divisions of the peripheral nervous system?
Somatic nervous system and autonomic nervous system
What is the function of the somatic nervous system?
Conveys messages from sense organs to the CNS and from the CNS to muscles and glands
What does the autonomic nervous system control?
Heart, intestines, and other organs
What does ‘dorsal’ refer to in anatomical terms?
Toward the back
What does ‘ventral’ refer to in anatomical terms?
Toward the stomach
What does ‘anterior’ mean?
Toward the front
What does ‘posterior’ mean?
Toward the rear
What does ‘superior’ refer to?
Above another part
What does ‘inferior’ refer to?
Below another part
What does ‘lateral’ mean in anatomical terminology?
Toward the side, away from the midline
What does ‘medial’ refer to?
Toward the midline, away from the side
What does ‘proximal’ mean?
Located close to the point of origin or attachment
What does ‘distal’ mean?
Located more distant from the point of origin or attachment
What does ‘ipsilateral’ mean?
On the same side of the body
What does ‘contralateral’ mean?
On the opposite side of the body
