The tricep long head muscle is responsible for extending the elbow and shoulder joint, while the short head muscle mainly works to extend the elbow joint. The long head muscle is activated more during overhead movements, while the short head muscle is more active during pushing movements like bench press.
Seated bicep curls primarily target the biceps muscles, while standing bicep curls also engage the core and stabilizing muscles for balance. Standing bicep curls may be more effective for overall muscle activation and functional strength due to the additional engagement of supporting muscles.
human muscles are meant to maintain posture in upright position walking on 2 feet; cat muscles function to walk on 4 paws
Flexion and extension are movements that occur at joints in the body. Flexion decreases the angle between two body parts, while extension increases the angle. Flexion typically decreases the range of motion, while extension increases it. In terms of muscle activation, flexion usually activates muscles on the front side of the body, while extension activates muscles on the back side.
Standing bicep curls engage more muscles for stability and balance compared to sitting bicep curls, making them more effective for overall muscle activation and strength building.
Here we are talking about the surface of the muscles..... Smooth muscles have smooth surface while striated muscles have rough surface.....
Striated muscles have a striped appearance due to the arrangement of their fibers, while smooth muscles lack this striped pattern. Striated muscles are voluntary and under conscious control, while smooth muscles are involuntary and work automatically. Striated muscles are found in skeletal muscles, while smooth muscles are found in organs like the intestines and blood vessels.
Seated row exercises primarily target the middle back muscles, while cable row exercises engage a wider range of back muscles including the upper back and lats. Cable rows are generally more effective for building overall back strength due to the increased muscle activation across different areas of the back.
Seated bicep curls primarily engage the biceps muscles, while standing bicep curls engage additional stabilizing muscles for balance. Standing bicep curls are generally more effective for overall muscle engagement and core activation compared to seated bicep curls.
A relaxed stomach is when the muscles are not engaged or tightened, while a flexed stomach is when the muscles are contracted and tightened.
Skeletal muscles are attached to bones and help with movement, while cardiac muscles are found in the heart and help pump blood. Structurally, skeletal muscles have long, cylindrical fibers with multiple nuclei, while cardiac muscles have branching fibers with a single nucleus. Functionally, skeletal muscles are under voluntary control, while cardiac muscles contract involuntarily.
The key differences between the anterior and posterior arm are their location and the muscles they contain. The anterior arm is located on the front side of the arm and contains muscles like the biceps brachii, while the posterior arm is located on the back side and contains muscles like the triceps brachii.
Parasympathetic activation tends to have opposite effects to sympathetic activation. This means that parasympathetic activation typically promotes "rest and digest" functions such as slowing heart rate, promoting digestion, and relaxing muscles, while sympathetic activation triggers the "fight or flight" response, increasing heart rate, dilating airways, and redirecting blood flow to muscles.