Basic And Applied Sciences Flashcards
What bodily processes does the brain control consciously?
Higher thinking/mental faculties, voluntary muscle action, memory
What processes does the brain control unconsciously?
Heart rate, blood pressure, breathing, digesting food
What are the three ways in which the nervous system functions?
Sensory, integration, and motor functioning
What do our bodies use sensory functions for?
To gather both internal and external information about ourselves. Then, it’s passed to the central nervous system
What two things make up the central nervous system?
Brain and spinal cord
What two parts make up the central nervous system?
The brain and spinal cord
What bodily processes does the brain control consciously?
Voluntary muscle action
Memory
What bodily processes does the brain control unconsciously?
Heart rate
Blood pressure
Breathing
Digesting food
What are the three ways in which the nervous system functions?
Sensory
Integration
Motor functioning
How does the body use sensory function?
To gather internal and external information about yourself
What is integration (nervous system functions)?
The process in which the central nervous system receives, processes, and interprets all the information received from sensory function
How does the central nervous system receive sensory information?
From mechanoreceptors, chemorecweptors, photoreceptors, nociceptors, thermoceptors, and osmoceptors
What is motor output (nervous system functions)?
The process in which the brain sends out nerve impulses to initiate a response to the information processed.
What is Cerebrospinal fluid (CSF)?
The fluid that surrounds the brain and spinal cord.
What is the purpose of cerebropsinal fluid (CSF)?
It regulates blood flow to the brain and helps protect the brain and central nervous system from hard blows to the head or unanticipated changes in speed
What is the function of afferent neurons?
They pass information to the brain via the spinal cord
What is the function of efferent neurons?
They take information from the brain to effector cells
What is the function of effector cells?
They cause an action to take place in the muscles or organs
How can the afferent and efferent pathways be disrupted?
Through chronic or acute injury, illness, or inflammation
What happens if afferent and efferent pathways are interrupted?
Messages will not travel efficiently (or at all) to the brain or body.
What are the major muscles in the upper body?
Deltoid Biceps brachii Triceps brachii Pectoralis major Pectoralis minor Rectus abdominis Obliques Serratus anterior Trapezius Rhomboids Latissimus dorsi
What are the major muscles in the lower body?
Quadriceps Hamstrings Gluteus minimus and maximus Tensor fasciae latae (TFL) Gastrocnemius Tibialis anterior
What are the three different types of muscles?
Cardiac
Smooth
Skeletal
Where is cardiac muscle found?
In the heart
Where is smooth muscle found?
In the organs
Where is skeletal muscle found?
In the muscles
How are cardiac and smooth muscle controlled?
Involuntarily by the central nervous system (CNS)
How is skeletal muscle controlled?
Voluntarily by the central nervous system (CNS)
What are Type I muscle fibers?
Slow-twitch fibers
What is the primary fuel source for Type I muscle fibers and how is it created?
ATP (adenosine triphosphate) created from oxygen
What are Type I muscle fibers used for?
Primarily for endurance activities (i.e. running a marathon)
What are Type II muscle fibers?
Fast-twitch fibers
What is the primary fuel source for Type II muscle fibers?
Anaerobic metabolism
What is anaerobic metabolism?
Glycosis
ATP-PC systems (adenosine triphosphate and phosphocreatine)