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Figure 19-1 The Origins and Differentiation of Formed Elements
Identify the cell labeled "6."
A) erythrocyte
B) lymphocyte
C) eosinophil
D) basophil
E) monocyte
Skin can regenerate effectively even after considerable damage has occurred because
A) the epidermis of the skin has a rich supply of small blood vessels.
B) stem cells persist in the skin even after injury.
C) fibroblasts in the dermis can give rise to new germinal cells in the epidermis.
D) contraction in the area of the injury brings cells of adjacent strata together.
E) cells of the stratum basale cannot migrate to other positions in the skin.
The contraction phase of the cardiac cycle is called
A) depolarization.
B) systole.
C) diastole.
D) hyperpolarization.
E) asystole.
A molecule of ________ contains all the codons needed to produce a particular
polypeptide.
A) rRNA
B) mRNA
C) dRNA
D) tRNA
E) cRNA
Destruction to your left glossopharyngeal nerve would result in
A) inability to sense sweetness at the tip of your tongue.
B) a reduction in ability to identify sour and bitter foods.
C) anosmia, also called nose blindness.
D) perceiving taste sensations where is no real stimulus.
E) identifying all foods as too salty.
Why is it that one cannot identify the location of internal organs, although joints and
bone location can be identified?
A) The internal organs have no proprioceptors like joints, bones, and muscles.
B) Internal organs have no pain receptors.
C) Although internal organs have some receptors, the information is not interpreted by
the brain.
D) Internal organs have no receptors of any kind.
E) Sensory information from internal organs is processed by a different part of the brain
than the joints, bones, and muscles.
The blood vessels that supply blood to structures within the mediastinum other than the
heart and pericardium are the ________ arteries.
A) azygos
B) thoracic
C) pleural
D) mediastinal
The infancy stage of life is considered to be over at
A) 3 months
B) age 2.
C) 6 months.
D) 1 month.
E) 18 months.
The space occupied by an osteocyte is called
A) Volkmann's canal.
B) a lacuna.
C) a trabecula.
D) a Haversian canal.
E) a canaliculus.
The ________ is the volume of blood in a ventricle at the beginning of systole.
A) ejection fraction
B) end-diastole volume
C) start-diastolic volume
D) end-systolic volume
E) stroke volume
Reticulocytes complete their development into ________ in the circulation.
A) neutrophils
B) megakaryotes
C) thrombocytes
D) macrophages
E) erythrocytes
