Test 3
Biology 2130 with Sutton at East Carolina University
About this deck
By: Allison Taylor
Created: 2011-12-14
Size: 40 flashcards
Views: 234
Created: 2011-12-14
Size: 40 flashcards
Views: 234
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis
Dennis
Sign up (free) to study this.
What kind of tissue os the forerunner of long bones in the embryo?
Hyaline Cartilage
A fracture in a shaft of bone would break in
Diaphysis
Factors in preventing (or delaying) osteoporosis include
increasing intake of Ca 2+
Ossification of the ends of long bones
is characterized by secondary ossification
which of the following is (are) not function(s) of the skeletal system?
Strength
The functional unit of compact bone is
Osteon
Periosteum is secured to the underlying bone by dense connective tissue called
Sharpey's Fibers
In epiphysis plate, cartilage grows
from epiphysis to diaphysis
Which hormone increases osteoclast activity to release more Ca ions in the bloodstream?
Parathyroid hormone.
In muscle contraction, Ca reacts to
remove blocking action of tropomyosin.
Ca ions bind to _______ molecule in skeletal muscle cells.
Troponin
An elaborate network of membranes in skeletal muscle cells that functions in Ca storage is
Sarcoplama reticulum
A sarcomere is
Area between two Z discs
Which of the following are composed of myosin?
Thick filaments.
Which of the following surrounded individual muscle cell?
Endomysium
During muscle contraction myosin cross bridges attach to which active sites?
Action filaments.
Functional role of T tubules is to
enhance cellular electrical communication during muscle contraction.
Sliding filaments model of contraction involves actin and myosin shortening but not
sliding past each other
The role of Ca ions in muscle contraction
bind regulatory sites on troponin, changing configuration
To move towards the head
superior
Moving laterally
none of the above.
Bone development includes
two of the above.
chase in regards to bone growth involves
cartilage growth in both epiphysis and diaphysis
Endochondral ossificaion includes
formation of primary and secondary ossification
Adverse condition removed calutonin from physiological system response
Defective Ca removal from new bone.
A contracted sarcomere will be missing
none of the above.
Myosin head itself has
A site that will allow ATP binding
Troponin is a protein that
All of the above.
Sliding filament theory all except
actin and myosin molecules shortening as filaments slide.
A complete sarcomere may contract initially (from rest) with all of except
troponin bound to Ca
Skeletal muscle is called involuntary because it is the only type of muscle usually subject to conscious control
False
Skeletal muscle need nerve stimulation for contraction to occur
False
Neurotransmitter used by the nervous system to active skeletal muscle cells is Ach
True
When muscle fivers contract, I bands diminish in size, H zones disappear, A bands move together but do not shorten
True
Endochondrial ossification allows for proper development of secondary actin and myosin proteins
False
Hematopoiesis refers to the formation of blood cells within red marrow cavities of cones
True
Tropomyosin covering active sites on actin will bind Ca
False
Neuromuscular function is the point at which never ending forms a synapse with skeletal muscle
True
Glyocolysis is one aerobic type metabolem that provides ATP for long periods of time.
False
Absence of T tubules will lead to a complete removal of skeletal muscular contraction
False
About this deck
By: Allison Taylor
Created: 2011-12-14
Size: 40 flashcards
Views: 234
Created: 2011-12-14
Size: 40 flashcards
Views: 234
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis
Dennis