General Questions - Random all units Flashcards
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What is an Isometric contraction?
Muscle activates without lengthening or joint movement. (Wall sit)
Does oxygenated blood travel in the Pulmonary vein?
Yes, it receives blood that has been oxygenated in the alveoli and returns it to the left atrium.
What is the wall of cartilage that runs down the centre of the heart called?
Myocardium
What are the smallest arteries called?
Arterioles
Name the hip abductor muscle
Gluteus medius, gluteus minimus, and tensor fasciae latae
What is the largest vein in the body called?
Vena cava, which carries deoxygenated blood from the lower half of the body back up to the heart.
Can muscle fibres contract to 50%
No, given a muscle stimulus fibres will participate in contraction(100%) or none (0%) will participate
Which blood vessels have thin walls to allow diffusion of gasses?
Capillaries
What is the PNS?
It’s the peripheral nervous system and connects the CNS to the limbs and organs, essentially serving as a relay between the brain and spinal cord and the rest of the body.
What is the name given to the process of muscle growth due to constant use?
Muscle hypertrophy
Where does oxygen diffuse to during the process of gaseous exchange in the lungs?
Oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli
Where is the Calcaneus?
In the foot, the calcaneus is also known as the heel bone
Which type of bone is the scapula?
Flat bone
Which region of the spine is affected by Hyperlordosis?
Lumbar region
Which structure is made up of tough white non-elastic fibrous tissue
Regular fibrous connective tissue is found in tendons (which connect muscles to bones) and ligaments (which connect bones to bones).
Which joint allows Adduction and Abduction?
Ball and socket joint such as shoulders and hip
What is the name of the connective tissue surrounding the whole muscle?
Endomysium
What is the name of the thin myofilament within skeletal muscle?
Thin filaments consist primarily of the protein actin
Which muscle helps to prevent stress incontinence?
Pelvic floor muscle
What is the name of a muscle that stabilizes and prevents unwanted movement?
Neutralizer or fixator Muscle
What assists venous return?
Skeletal Muscle Pump
What is the long-term effect of Muscular Endurance training?
Muscle hypertrophy, or the increase in muscle mass due to exercise, particularly weight training
What colour are fast twitch muscle fibres?
Red
Which skill-related component of fitness responds quickly to a stimulus?
Reaction time