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mishia brown
midterm study stack
| Term | Definition |
|---|---|
| Muscle Tone | Muscle tone is the maintenance of partial contraction of a muscle, important for generating reflexes, maintaining posture and balance, and controlling proper function of other organ systems. Tone is controlled by the sensory muscle spindle, which measures |
| What are muscle cells composed of? | ain protein filaments of actin and myosin that slide past one another, producing a contraction that changes both the length and the shape of the cell. Muscles function to produce force and motion. They are primarily responsible for maintaining and changin |
| What are the 3 types of muscle cells? | Muscle tissues are derived from the mesodermal layer of embryonic germ cells in a process known as myogenesis. There are three types of muscle, skeletal or striated, cardiac, and smooth. Muscle action can be classified as being either voluntary or involun |
| What are sutures and what function do they play in bone growth? | Sutures allow the bones to move during the birth process. They act like an expansion joint. This allows the bone to enlarge evenly as the brain grows and the skull expands. The result is a symmetrically shaped head. Some sutures extend to the forehead, wh |
| What are the three types of sutures? | Metopic suture. This extends from the top of the head down the middle of the forehead, toward the nose. The 2 frontal bone plates meet at the metopic suture. Coronal suture. This extends from ear to ear. Each frontal bone plate meets with a parietal bo |
| What are long bones and where in the body are they located? | Long bones function to support the weight of the body and facilitate movement. Long bones are mostly located in the appendicular skeleton and include bones in the lower limbs (the tibia, fibula, femur, metatarsals, and phalanges) and bones in the upper li |
| What is the main function of bones? | Provide support: The skeletal system provides structural support for the entire body. Individual bones or groups of bones provide a framework for the attachment of soft tissues and organs. Store minerals and lipids: Calcium is the most abundant mineral in |
| What are the different types of bones found in the body? | The four principal types of bones are long, short, flat and irregular. |
| What is the most common type of tissue in the body | connective tissue is the most abundant tissue type in the body. In general, connective tissue consists of cells and an extracellular matrix. The extracellular matrix is made up of a ground substance and protein fibers. |
| What tissues make up the cardiac muscle | It is composed of individual heart muscle cells (cardiomyocytes) joined together by intercalated discs, encased by collagen fibers and other substances that form the extracellular matrix. Cardiac muscle contracts in a similar manner to skeletal muscle, al |
| What are intercalated disks? | muscle cells, unique junctions called intercalated discs (gap junctions) link the cells together and define their borders. Intercalated discs are the major portal for cardiac cell-to-cell communication, which is required for coordinated muscle contraction |
| The axial skeleton system is made up of? | The axial skeleton is the part of the skeleton that consists of the bones of the head and trunk of a vertebrate. In the human skeleton, it consists of 86 bones and is composed of six parts; the skull (22 bones), the ossicles of the middle ear, the hyoid b |
| The appendicular skeletal system is composed of? | The appendicular skeleton is the portion of the skeleton of vertebrates consisting of the bones that support the appendages. There are 126 bones. The appendicular skeleton includes the skeletal elements within the limbs, as well as supporting shoulder gir |
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shia5980
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