Chapter 15: Structure and Function of the Neurologic System Flashcards
The peripheral nervous system consists of… (p. 448)
Cranial nerves and spinal nerves
Functionally, the PNS can be divided into… (p. 448)
The somatic nervous system and the autonomic nervous system
The autonomic nerves system is further divided into…. (p. 448)
Sympathetic and parasympathetic divisions
What is the difference between efferent and afferent pathways? (p. 448)
Afferent pathways are ascending pathways.
Efferent pathways are descending.
The major structures of the metencephalon are the….
….cerebellum and pons.
p. 459
Each hemisphere of the cerebellum is divided by the primary fissure into 2 lobes (_______ and ________) that are connected by a midline structure called the _____, meaning worm.
anterior and posterior
vermis
p. 459
The cerebellum is responsible for conscious and unconscious muscle _______ and for maintaining _______ and posture.
synergy
balance
p. 459
Damage to the cerebellum is characterized by ___________ loss of equilibrium, balance, and motor coordination.
ipsilateral
p. 459
The nervous system transmits both __________ and _______ signals between the body’s many organs and tissues and the brain.
electrical and chemical
p. 447
The peripheral nervous system (PNS) is composed of the cranial nerves, which project from the brain and pass through ________ (openings) in the skull, and the spinal nerves, which project from the spinal cord and pass through ______________ ________ of the vertebrae.
foramina
intervertebral foramina
p. 448
The somatic nervous system consists of….
…..motor and sensory pathways regulating voluntary motor control of skeletal muscle.
p. 448
The autonomic nervous system (ANS) also consists of motor and sensory components and is involved with regulation of the body’s ________ ___________ (viscera) through ___________ control of organ systems.
internal environment
involuntary
p. 448
The two basic types of cells that comprise nervous tissue are _______ and _________ cells.
neurons
neuroglial
p. 448
