Av. Hemolysis (sec)
Relationship between hemolysis time and concentration
Ave. Hemolysis time (seconds)
1. What are the parts of a reflex arc?
There are 5 different parts of the reflex arc, those 5 are:
Sensory input (afferent neuron) sends signal to CNS
Integration center determines strength of response
Response (effector neurons) transmits impulses
2. Explain why increasing extracellular K+ causes the membrane
potential to change to a less negative value. How well did the
results compare with your prediction?
The reason why the membrane potential changes to a less negative value is
1. What causes diffusion?
a. The process by which molecules spread from areas of high concentration to
areas of low concentration. This happens when heat creates energy that is
then absorbed by molecules making them move.
4. Describe what ha
TOPIC 6: CENTRAL NERVOUS SYSTEM
I. Introduction to the Nervous System
Objective: Weve discussed mechanisms of how electrical signals are transmitted within a
neuron (Topic 4), and how they are transmitted from neuron to neuron (To
TOPIC 2: THE CELL
I. General Structure
75 trillion cells in body
Major parts (Fig 2.15)
cell membrane (sometimes called plasma membrane)
Cell (or plasma) membrane (Fig 2.16)
TOPIC 1: CONCEPTS AND THEMES OF HUMAN PHYSIOLOGY
I. What is human physiology?
Study of function of human body
Function closely related to structure
For example, to understand heart function, need to understand heart structur
TOPIC 5: SYNAPSES AND NEURONAL INTEGRATION
How is information transferred from neuron to neuron?
The electrical signal that moves down a neuron must be passed to the next neuron
The junction between two neuro
Topic 4 human Phys:
The longer the stimulus the longer the graded potential
Further the graded potential the more depleted it comes
Has changes in sensation
-pins and needles
-muscle weakness (myelin sheath disorder) no
Exam 1 Study Guide:
What are 3 types of muscle tissue?
o Skeletal, smooth, cardiac
What is an example of negative feedback?
o When a person stands up, blood pressure decreases due to blood
pooling in the feet and legs. The heart and blood vessels respond