BIOL 3446-001 Exam # 3 Review
Chapter 10 - Muscular Tissue
Terms
Action potentials – electrical signals
Muscle belly – body of the organ
Tendons –tough, fibrous, regular connective tissue
Aponeuroses – sheet of white fibrous tissue with a wide area of attachment
Fascia – large dense irregular connective tissue sheets that are wrapped around muscle
groups
Hypertrophy – enlargement of existing muscle fibers
Hyperplasia – increase in number of fibers
Skeletal Muscle tissues
Functions Properties Types
Producing body movements – Electrical excitability – Striated – alternating
walking, running response to certain stimuli by light and dark protein
producing electrical signals bands
Stabilizing body positions – Contractibility – ability to Voluntary – can be
standing or sitting contract forcefully when consciously controlled
stimulated by nerve impulses
Storing and moving substances Extensibility – ability to stretch
within the body - sphincters so
we don’t shit ourselves
Producing heat – shivering to Elasticity – ability to return to
release heat its original length and shape
Connective Tissue Coverings
Endomysium – wraps each individual
muscle fiber
Perimysium – dense irregular connective
tissue covering a bundle of endomysium
Epimysium – binds to form all the muscle
fascicles together to form the muscle belly.
COVERS THE ENTIRE MUSLCE
, Muscle structure
Muscle Fibers A muscle cell that arises from myoblasts
during embryonic development
Sarcolemma The plasma membrane of a muscle fiber
T Tubules Channels that run across the muscle
fibers, extensions of the sarcolemma,
and penetrate into the muscle cells.
Sarcoplasm Cytoplasm of a muscle fiber and
contains a large amount of glycogen
Myofibrils Unit of muscle cell
Sarcoplasmic Fluid filled system of membranous sacs
reticulum that encircles the myofibril. Stores Ca2+
Sarcomeres Comparts of myofilaments. Extends
from one Z disc to the next Z disc
Myofilaments Within myofibrils, smaller unit of muscle
Components of Sarcomere
, Muscle Proteins
Contractile Proteins generate force during contraction
Chapter 10 - Muscular Tissue
Terms
Action potentials – electrical signals
Muscle belly – body of the organ
Tendons –tough, fibrous, regular connective tissue
Aponeuroses – sheet of white fibrous tissue with a wide area of attachment
Fascia – large dense irregular connective tissue sheets that are wrapped around muscle
groups
Hypertrophy – enlargement of existing muscle fibers
Hyperplasia – increase in number of fibers
Skeletal Muscle tissues
Functions Properties Types
Producing body movements – Electrical excitability – Striated – alternating
walking, running response to certain stimuli by light and dark protein
producing electrical signals bands
Stabilizing body positions – Contractibility – ability to Voluntary – can be
standing or sitting contract forcefully when consciously controlled
stimulated by nerve impulses
Storing and moving substances Extensibility – ability to stretch
within the body - sphincters so
we don’t shit ourselves
Producing heat – shivering to Elasticity – ability to return to
release heat its original length and shape
Connective Tissue Coverings
Endomysium – wraps each individual
muscle fiber
Perimysium – dense irregular connective
tissue covering a bundle of endomysium
Epimysium – binds to form all the muscle
fascicles together to form the muscle belly.
COVERS THE ENTIRE MUSLCE
, Muscle structure
Muscle Fibers A muscle cell that arises from myoblasts
during embryonic development
Sarcolemma The plasma membrane of a muscle fiber
T Tubules Channels that run across the muscle
fibers, extensions of the sarcolemma,
and penetrate into the muscle cells.
Sarcoplasm Cytoplasm of a muscle fiber and
contains a large amount of glycogen
Myofibrils Unit of muscle cell
Sarcoplasmic Fluid filled system of membranous sacs
reticulum that encircles the myofibril. Stores Ca2+
Sarcomeres Comparts of myofilaments. Extends
from one Z disc to the next Z disc
Myofilaments Within myofibrils, smaller unit of muscle
Components of Sarcomere
, Muscle Proteins
Contractile Proteins generate force during contraction
