Psych Unit 1 The Brain - Biology and Behavior

Biological psychology is the study of the ______________ factors that influence or cause behavior and mental processes.

• social and physical
• naturalisti
• physical and chemical
• cognitive

Chemical messengers produced by endocrine glands are called

• agonists
• neurotransmitters
• hormones
• enzymes

Ashley just completed a big match. She is so elated that she feels little fatigue or discomfort. Her lack of pain is probably the result of the release of

• ACh
• endorphins
• norepinephrine
• dopamine

Dr. Barillas is examining a cell from the nervous system of an animal. He notices that at one end of the cell body is a long, fibrous strand of tissue. He immediately recognizes this as an axon that is responsible for

• carrying signals away from the cell body.
• receiving signals from other cells and carrying them toward the cell body.
• determining the speed at which an action potential will travel.
• determining whether the cell inhibits or excites neighboring neurons.

The visual cortex is located in the

• occipital lobe.
• temporal lobe
• parietal lobe.
• frontal lobe

Which of the following is typically controlled by the left hemisphere?

• spatial reasoning
• word recognition
• the left side of the body
• perceptual skills

The technique that uses magnetic fields and radio waves to produce computer images of structures within the brain is called:

• the EEG.
• a lesion
• a PET scan
• MRI.

Unusual drinking and eating behaviors can be caused by damage to the

• hypothalamus
• reticular activating system.
• pons
• cerebellum

The main function of the peripheral nervous system is to

• relay messages between the brain’s right and left hemispheres.
• transmit information from the central nervous system to other parts of the body.
• speed up respiration and heart rate to increase alertness.
• produce growth hormones.

Multiple sclerosis is a disease in which the immune system mistakenly destroys some of the myelin wrapped around nerve cell fibers. Which nerve cell fibers are being attacked by this process

• Synapses
• Axons
• Mitochondria
• Dendrites