Exam 3 Flashcards
Lymphatics and immunity, respiratory
This organ stores developing T-cell lymphocytes until they are deployed to lymphatic tissues. A) spleen B) thyroid gland C) thymus D) bone marrow E) AA
C) thymus
Which of the following are functions of the lymphatic system? A) fluid recovery B) immunity C) lipid absorption D) 2A E) AA
E) AA
Memory T-cells are associated with A) cell-mediated immunity B) antibody mediated immunity C) passive immunity D) diplomatic immunity
A) cell-mediated immunity
Non-specific body defenses include A) epithelial and mucosal membraned B) secretion of water, urea, and salts C) fever and inflammation D) 2A E) AA
E) AA
T and B lymphocytes
A) are polymorphonuclear
B) are involved with specific immune function
C) proliferate excessively in leukopenia
D) are most effective against parasitic worms
E) NA
B) are involved with specific immune function
Which of the following are barriers to pathogen invasion? A) skin and hair color B) hydrochloric acid C) sweat and salt and other secretions D) 2A E) AA
D) 2A
Which of the following describes a neutrophil?
A) abundant, agranular, especially effective against cancer cells
B) abundant, granular, especially effective against bacteria
C) rare, agranular, releases antimicrobial defensins
D) rare, granular, contains multiple granules packed with histamine
E) NA
B) abundant, granular, especially effective against bacteria
You are an intern performing medical rounds. You have a patient with a very high number of leukocytes and upon further examination, a complete red blood cell count (CBC) uncovers an unusual number of hemocytoblasts. What is (are) possible reasons for this disorder? A) stroke B) low erythrocytes C) leukemia D) polycythemia E) osteoporosis
C) leukemia
A fever results when lymphocytes release a substance called a \_\_ that resets the hypothalamic temperature set-point. A) cytokine B) hormone C) perforin D) pyrogen E) NA
D) pyrogen
Which of the following cells is phagocytic? A) plasma cell B) macrophage C) B cell D) NK cell E) AA
B) macrophage
Artificial passive immunity is
A) derived from a vaccination
B) derived by exposure and recovery from a disease
C) derived by injection of antibodies or an anti-venom
D) AA
E) NA
C) derived by injection of antibodies or an anti-venom
True or False. All lymphatic tissues and organs contain reticular connective tissue and resident lymphocytes
True
This is the volume of air one uses while sleeping A) tidal volume B) residual volume C) expiratory reserve volume D) inspiratory reserve volume E) AA
A) tidal volume
If a person has been vaccinated, this is a form of \_\_ immunity and will last until the \_\_ cell dies. A) natural, helper T-cell B) induced, memory C) natural, mast D) induced, neuron E) induced, plasma
B) induced, memory
Which if the following make diffusion across a membrane so efficient?
A) the partial pressure gradients are enormous
B) gasses are lipid soluble
C) blood flow (perfusion) and air flow (ventilation) are coordinated
D) 2A
E) AA
E) AA
The exchange portion (alveoli) of the respiratory tree is lined with __.
A) simple cuboidal epithelium
B) pseudostratified ciliated columnar epithelium and goblet cells
C) Type I and Type II alveolar cells
D) stratified squamous epithelium
E) dense connective tissue
C) Type I and Type II alveolar cells
Normal ventilation that results in a neutral pH of the blood is called A) hyperpnea B) hyperventilation C) acclimatization D) apnea E) eupnea
E) eupnea
Type I and Type II alveolar cells are A) connective tissue B) epithelium C) both secretory cells D) a and b E) b and c
B) epithelium
Which of the following terms describes how hemoglobin changes shape during saturation with O2 A) alkaline altered B) temperature modification C) cooperative loading D) 2A E) AA
C) cooperative loading
Gas flow through a bronchiole decreases as \_\_ increases. A) pressure B) resistance C) airway diameter D) 2A E) AA
B) resistance
To balance the red blood cells electrical gradient, as HCO3- flows into the cell, what ion flows out of the cell? A) Fe++ B) Mg++ C) Cl- D) Na+ E) Na
C) Cl-
Carbon dioxide is carried in the blood plasma
A) as dissolved gas and carbonic acid (H2CO3)
B) as dissolved gas and bicarbonate (HCO3-)
C) bound to hemoglobin, as dissolved gas, and bicarbonate
D) as bicarbonate
E) dissolved in solution
B) as dissolved gas and bicarbonate (HCO3-)
The central chemoreceptors directly respond to which of the following stimuli?
A) decreased oxygen levels in the cerebrospinal fluid (CSF)
B) increased hydrogen ion concentration in the CSF
C) increased carbon dioxide levels in the blood
D) b and c
E) AA
B) increased hydrogen ion concentration in the CSF
The respiratory groups as a whole are responsible for
A) the basic inspiratory rhythm (pattern) of breathing
B) controlling the rate and the depth during speech and song
C) forced breathing during exercise
D) AA
E) NA
D) AA
The peripheral chemoreceptors
A) are the aortic and carotid bodies
B) are very sensitive to changes in arterial blood pressures
C) are sensitive to changes in cerebrospinal fluid oxygen levels
D) a and b
E) NA
D) a and b
