Lab 1 Flashcards
What is evoked by a specific stimulus?
Reflex
Vomiting, coughing, and defamation are examples of what?
Reflexes
What is the purpose of a reflex?
protect the body against and or minimize injury to skeletal muscle
How are reflexes used in a clinical setting?
used to diagnose issues related to the nervous system
Absent reflex would suggest….?
damage to the peripheral nervous system or skeletal muscle
Exaggerated Reflex would suggest ….?
issue or damage to the central nervous system or a neuromuscular disease
what are the components of the reflex arc?
- stimulus received by receptors,
- sensory neuron transmits,
- association neuron (interneuron)
- motor (efferent) neuron 5. effector results in a response
what is the process of reflex arc?
the sensory cell carries afferent impulses to the central interneuron —>motor neuron then carries efferent impulses to effect which produces a response
What muscle, spinal cord segment, and peripheral nerve is responsible for the Patellar Tendon Reflex?
Muscle: Quadricep Femoris
Spinal Cord Segment: L4
Peripheral Nerve: Femoral
What muscle, spinal cord segment, and peripheral nerve is responsible for the Achilles Tendon Reflex?
Muscle: Gastrocnemius, Soleus
Spinal Cord Segment: S1
Peripheral Nerve: Tibial
What muscle, spinal cord segment, and peripheral nerve is responsible for the biceps Tendon Reflex?
Muscle: Triceps Branchill
Spinal Cord Segment: C7
Peripheral Nerve: Radial
What is the importance of Reaction Time?
to minimize injury when reacting to various stimuli
the slight time delay between receiving visual stimulation to your reaction is what?
Reaction time
What is on the x and y-axis of the length-tension relationship graph?
the x-axis is the muscle length at at rest and the y-axis is the tension
What is the length-tension relationship?
muscle length and its ability to generate force
