PNB 2265 EXAM 1 - UNIT 1 BLOOD EXAM
QUESTIONS WITH VERIFIED RIGHT
ANSWERS |GRADED A+ .
what type of tissue is blood? - Correct Answer -connective tissue
what is blood defined by? - Correct Answer -- composition of their extracellular matrix
- blood is a fluid connective tissue with a plasma filled matrix
why do cis men have more blood than cis women? - Correct Answer -the Y chromosome
tends to create a larger body stature
true or false: blood volume is always in proportion to body size - Correct Answer -true
how many liters of blood does the average person have? - Correct Answer -4-7 liters
blood regulation function - example 1 - Correct Answer -blood has a fairly neutral pH of
about 7.4, which allows it to take on a regulatory role inside the body
blood regulation function - example 2 - Correct Answer -blood acts as a good temperature
buffer inside the body and helps us to maintain thermal homeostasis
blood regulation function - example 3 - Correct Answer -blood helps us to maintain osmotic
balance between the tissues and the extracellular environment (prevents cells from shrinking
or swelling)
blood transport function - Correct Answer -the blood allows the body to overcome the
distance limitations of diffusion so that we can distribute oxygen , carbon dioxide, and
nutrients all throughout the body
1
, fractionated blood components - Correct Answer -- plasma --> liquid portion of the blood
(46-63%)
- formed elements --> cells (RBC, WBC) and cell fragments (platelets) (37-54%)
what is the plasma composed of? - Correct Answer -water (92%), plasma proteins (7%), and
other solutes (1%)
what are the three types of plasma proteins found in the plasma? - Correct Answer -- albumin
(60%)
- globulins (35%)
- fibrinogen (4%)
albumin - Correct Answer -- helps to create an isotonic environment with the tissues
- minimizes the water movement through osmosis
- transports lipids, hormones, and steroids
globulins - Correct Answer -- family of proteins important for making antibodies
- transports globulins and immunoglobulins
fibrinogen - Correct Answer -essential for blood clotting
what are the formed elements found in the blood? - Correct Answer -red blood cells, white
blood cells, and platelets
platelets - Correct Answer -fragments of megakaryocytes critical for clotting
white blood cells (leukocytes) - Correct Answer -defense against infection
red blood cells (erythrocytes) - Correct Answer -deliver oxygen and remove carbon dioxide
simple analysis: hematocrit - Correct Answer -- simple test that uses gravity, allowing the
components of the blood to separate out based upon their mass and their density
2
QUESTIONS WITH VERIFIED RIGHT
ANSWERS |GRADED A+ .
what type of tissue is blood? - Correct Answer -connective tissue
what is blood defined by? - Correct Answer -- composition of their extracellular matrix
- blood is a fluid connective tissue with a plasma filled matrix
why do cis men have more blood than cis women? - Correct Answer -the Y chromosome
tends to create a larger body stature
true or false: blood volume is always in proportion to body size - Correct Answer -true
how many liters of blood does the average person have? - Correct Answer -4-7 liters
blood regulation function - example 1 - Correct Answer -blood has a fairly neutral pH of
about 7.4, which allows it to take on a regulatory role inside the body
blood regulation function - example 2 - Correct Answer -blood acts as a good temperature
buffer inside the body and helps us to maintain thermal homeostasis
blood regulation function - example 3 - Correct Answer -blood helps us to maintain osmotic
balance between the tissues and the extracellular environment (prevents cells from shrinking
or swelling)
blood transport function - Correct Answer -the blood allows the body to overcome the
distance limitations of diffusion so that we can distribute oxygen , carbon dioxide, and
nutrients all throughout the body
1
, fractionated blood components - Correct Answer -- plasma --> liquid portion of the blood
(46-63%)
- formed elements --> cells (RBC, WBC) and cell fragments (platelets) (37-54%)
what is the plasma composed of? - Correct Answer -water (92%), plasma proteins (7%), and
other solutes (1%)
what are the three types of plasma proteins found in the plasma? - Correct Answer -- albumin
(60%)
- globulins (35%)
- fibrinogen (4%)
albumin - Correct Answer -- helps to create an isotonic environment with the tissues
- minimizes the water movement through osmosis
- transports lipids, hormones, and steroids
globulins - Correct Answer -- family of proteins important for making antibodies
- transports globulins and immunoglobulins
fibrinogen - Correct Answer -essential for blood clotting
what are the formed elements found in the blood? - Correct Answer -red blood cells, white
blood cells, and platelets
platelets - Correct Answer -fragments of megakaryocytes critical for clotting
white blood cells (leukocytes) - Correct Answer -defense against infection
red blood cells (erythrocytes) - Correct Answer -deliver oxygen and remove carbon dioxide
simple analysis: hematocrit - Correct Answer -- simple test that uses gravity, allowing the
components of the blood to separate out based upon their mass and their density
2
