Dissection
Body Structure
Tools
Physiological
MCAT Style
100
What is the name of a horizontal cut that separates the top and bottom of a specimen?
Transverse plane
100
What is the name of the connective tissue that holds bones together at joints?
Ligaments
100
What is this tool?
Scalpel
100
What is the major organ of the integumentary system?
The skin
100
Impaired release of which of the following neurotransmitters would directly result in the paralysis of skeletal muscles?
A. Norepinephrine
B. Epinephrine
C. Glutamate
D. Acetylcholine
D) Acetylcholine
Reasoning: ACh is the main neurotransmitter released by neurons of the efferent somatic nervous system, the system associated with skeletal muscle function.
200
What ancient civilization performed the first human dissection?
Ancient Greeks
200
Which part of the brain is responsible for controlling balance and coordination?
Cerebellum
200
What is this tool?
Blood Pressure Cuff
200
What branch of the peripheral nervous system is involved in controlling skeletal muscle and external sensory organs?
Somatic Nervous System
200
The solutes in an aqueous reaction mixture are separated by extraction. The function of the nonpolar organic solvent is to:
A. Transfer hydrophilic molecules to the organic layer
B. Combine the components of a reaction mixture
C. Increase the volume of the solvent
D. Remove hydrophobic molecules from the aqueous layer
D) Remove hydrophobic molecules from the aqueous layer.
Reasoning: A nonpolar organic solvent is used in an extraction to remove the hydrophobic molecules from the polar aqueous layer while the hydrophilic molecules remain in the aqueous layer.
300
What is the preservation fluid for dissections?
Formalin (liquid formaldehyde)
300
Which heart ventricle is thicker and why?
Left ventricle because it pumps blood at a higher pressure
300
What is this tool?
Hemostat
300
What is the major organ of the integumentary system?
The skin
300
Which of the following correctly pairs a basic conflict with the age range corresponding to a stage of Erikson's psychosocial stages of development?
A. Trust vs. mistrust - ages 3-6 years
B. Identity vs. confusion - ages 12-18 years
C. Generativity vs. stagnation - ages 65+
D. Industry vs. inferiority - ages `19-29
B. Identity vs. confusion - ages 12-18 years
Reasoning: the stage where one attempts to define their identity and role in society is often associated with adolescent ages
400
What is the most commonly dissected animal in Biology classes?
Frog
400
Label this from right to left!
Artery, Arterioles, Capillaries, Veules, Veins
400
What is this tool?
Endotracheal tube
400
What is the balanced state that the body strives to create or maintain perfect balance in the body using all the body systems?
Homeostasis
400
Which of the following solutions has the lowest pH?
A) 0.1 M HCl
B) 0.1 M NaOH
C) 0.1 M NaCl
D) Pure water
A) 0.1 M HCl
HCl is a strong acid and will full dissociate causing H+ to be released, shifting the pH down!
500
What artist performed dissections in order to improve his work?
Leonardo da Vinci
500
In cross-bridge cycling, the myosin head binds to what filament during a muscle contraction?
Actin filament
500
What is this tool?
Debakey
500
What is the name of the functional unit in kidneys?
Nephron
500
A solution of which amino acid will NOT rotate plane polarized light?
A. Lysine
B. Glycine
C. Tyrosine
D. Serine
B) Glycine
Reasoning: Glycine is bonded to two hydrogen atoms, making it achiral (neither L or D) and will not rotate plane polarized light)