All of the following does not serve a metabolic function, except:
Heat generation
The elastic components of muscle consist of which elements?
Endomysium, epimysium, perimysium, tendon
The bulk of the muscle fiber/cell volume is formed by none of the following, except:
Titin
The T-tubules conduct electrical impulses that stimulate calcium release from the sarcoplasmic reticulum.
True
The sarcoplasmic reticulum is an elaborated rough endoplasmic reticulum.
False
The sliding filament mechanism for muscle contraction would be apparent in a sarcomere because ________.
The Z discs move closer together and the H zone become less obvious
The binding of acetycholine to membrane receptors on the sarcolemma at the neuromuscular junction, initiate the muscle contraction.
True
None of the following events that stimulates muscle contraction within a muscle fiber, except:
Depolarization
During muscle contraction, calcium binds to tropomyosin.
False
By isometric contractions of the skeletal muscle fibers, an individual can maintain an upright posture.
True
The bulk of the muscle fiber/cell volume is formed by none of the following, except?
Myofibrils
The functional unit of a skeletal muscle is termed as ______.
Sarcomere
The rope-like/cord like extension of the epimysium is called _____.
Tendon
During depolarization, the sarcolemma is most permeable to ___ions.
Sodium
The calcium is released from the terminal cisterns of the sarcoplasmic reticulum in response to an action potential.
True
The skeletal muscle contractions increase in strength because of ____.
Recruitment of motor units
The shortening of the organ can result from contraction of which sheet/layer of smooth muscle?
Longitudinal layer
For smooth muscle contraction calcium ions binds to calmodulin.
True
What is the role of tropomyosin in skeletal muscles?
Tropomyosin serves as a contraction inhibitor by blocking the myosin binding sites on the actin molecules.
Which muscle cells have the greatest ability to regenerate?
Smooth
During muscle contraction, myosin cross bridges attach to which active sites?
Actin filaments
Which of the following surrounds individual skeletal muscle bundle?
Perimysium
Smooth muscle is characterized by all of the following, except:
There are more thick filaments than thin filaments
Which of the following statements is true?
Striated muscle cells are long and cylindrical with many nuclei.
An anaerobic metabolic pathway that results in the production of two net ATPs per glucose plus two pyruvic acid molecules is _____.
Glycolysis
Which cells are commonly found in between the simple columnar epithelial cells?
Goblet Cells
What are the three main components of connective tissue?
Cells, fibers, and ground substance
All of the following are true concerning skeltal muscle fiber, except:
Contain contractile units made of collagen
The shape of the external ear is maintained by ______.
Elastic cartilage
The fiber type that gives connective tissue great elasticity is
Elastic
Which of the following epithelia forms the walls of the blood capillaries across which filtration of blood occur in the kidneys?
Simple squamous
How is fibrocartilage different from hyaline cartilage?
Collagen fibers are normally visible
Which of the following is found in the bone, but not found in cartilage?
Blood Vessels
The basic difference between dense regular and dense irregular connective tissues is the arrangement of collagen fibers.
True
The connect tissues that possess a large quantity of collagen fibers often provide the internal work/stroma for organs such as the spleen and lymph nodes.
False
The simple squamous epithelia are usually found in ares where filtration and diffusion occurs.
True
The shock-absorbing pads between the vertebrae are formed of elastic cartilage.
False
Ligaments and tendons are composed mainly of dense regular connective tissues.
True
All of the following tissue types does not form the boundaries between different environments, except:
Epithelial
The membranes that lines close ventral body cavities are classified as_____.
Serous membrane
The mast cells which typically cluster along blood vessels and release____when detect any foreign microorganisms.
Both C & D
All of the following are associated with cartilage, except:
Blood vessels
Which type of mucus secreting cells is abundant in simple columnar epithelium?
Goblet cells
Which of the following muscle cell types have intercalated disc in their structure?
Cardiac muscle
Which of the following type of connective tissue synthesizes blood cells and store fat?
Osseous tissue
All of the following types of connective tissue has some solid form of matrix, except:
Blood
All of the following types of epithelial tissues are not best suited for areas of the body where filtration or diffusion take place, except:
Simple squamous epithelium
The skin which forms the outermost covering for the body, which of the following tissues types would be expected for repeated friction?
Epithelial tissue
With which portion of the epithelial cell lining the mucous membrane of the stomach would food be in contact?
Apical surface
The basal lamina arises from none of the following types of tissue, except:
