A&P Lab Review
What structure is the functional unit of contraction in a skeletal muscle fiber?
The sarcomere
Identify the cleavage/blastocyst structure labeled "C".
advanced morula
What genetic disorder depicted in this image results in a lack of skin pigmentation which increases the chance of developing skin cancer?
albinism
Each codon of mRNA (hence each triplet in DNA) codes for one
amino acid
Male and female pronuclei fuse in a process called
amphimixis
Which structure of the intervertebral disc attaches to the bodies of adjacent vertebra?
anulus fibrosus
Identify the connective tissue proper cellular component labeled "F".
fibroblast
The rotator cuff is a term used to describe the group of muscles and tendons that stabilize and reinforce the __________.
glenohumeral joint
Identify the thoracic cage structure labeled "A".
jugular notch
Identify the compact bone structure labeled "D".
lacunae
What molecule is the final electron acceptor in the ETS?
molecular oxygen
Cells located in each seminiferous tubule which function to provide a microenvironment that supports spermatogenesis are called
nurse cells
Identify the special joint movement labeled "E".
opposition
Identify the major skeletal muscle labeled "F".
pectoralis major
The ball and socket joint in the hip is similar to the ball and socket joint of the shoulder but is designed more for __________ than ___________.
power; precision
An arterial blood gas was performed on a patient and the following results were obtained: pH = 7.30 CO2 = 47 mm Hg HCO3- = 25 mEq/L What type of acid-base imbalance would be indicative of these values?
respiratory acidosis
Identify the skeletal muscle fiber structure labeled "G".
sarcoplasmic reticulum
Describe the body pose of someone who is in the anatomical position.
standing erect, hands at sides, palms pointed forward, toes pointing forward
Identify the type of joint labeled "F".
symphysis
Ovarian cancer is a cancer of the female gonads. Therefore, ovarian cancer is to women as __________ is to men.
testicular cancer
A torn lateral collateral ligament destabilizes the connection between which of the following bones?
the femur and the fibula
Why do skeletal muscle cells contain high numbers of mitochondria?
to supply the ATP needed for skeletal muscle function
Identify the major skeletal muscle labeled "A".
trapezius
Identify the structure of the adult human skull labeled "I".
zygomatic bone
Identify the male reproductive structure labeled "B".
ductus deferens
The cross-bridge cycle is a series of molecular events that occur after excitation of the sarcolemma. What is a cross bridge?
A myosin head bound to actin
Trisomy 21 is the most common viable chromosomal abnormality. Another name for trisomy 21 is _____________.
Down's syndrome
Which of the following best summarizes the difference between genotype and phenotype?
Genotype refers to the gene alleles that one has, and phenotype refers to the trait that is expressed in response to those alleles
Which bone is the heel of the human foot?
calcaneus
Identify the female reproductive structure labeled "F".
cervix
