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The pyramidalis muscle, a small triangular muscle located in the lower abdomen, is absent in about 20% of the population due to genetic variation and developmental factors. Its presence or absence does not significantly impact overall abdominal function, as the external oblique and rectus abdominis muscles perform similar roles. Evolutionary adaptations may also play a role, leading to its redundancy in some individuals. Thus, the absence of the pyramidalis is a normal anatomical variation.
What else can I help you with?
Why is palmaris longus muscle absent in some people?
The Palmaris Longus muscle is found in the forearm of most mammals to include humans. However, the muscle may also be known to be absent in some people and this seems to be related to ethnicity; about 14% of the world's population do not have this muscle.
Why is the psoas minor muscle absent in some people?
Psoas Minor is a very small muscle that runs right beside Psoas Major and is almost indistinguishable from its big brother which is why it is often not thought to be present. However if it truly is absent then this is often because of general variation from person to person, this works because not having this small muscle does not impede life or mating in any great way. So according to the theaory evolution dictates people will still continue with the adaptation because it does not hinder the production of children. Yes, in some people it can be absent. People tend to vary, and not everyone has the exact same number of muscles and bones. For example: some people even have six fingers or toes.
Why are you absent without official leave?
People are absent from their jobs without official leave all of the time. Some excuses that people give for being absent are, that their car broke down, sick, or over slept.
Do some people have more nerves in their teeth than others do?
Very unlikely, absent a genetic abnormality.
Words that explain yourself with the letter a?
Some people are agreeable, ambitious, appreciative, astute and absent-minded. They begin with the letter a.
Does empty mean absent?
No-Empty refers to a container with nothing in it. Absent just means someone is not present at some event or location-like absent from school.
What are some examples of Ford muscle cars?
High performance cars are categorized as muscle cars by some people. The Ford Mustang might be considered by many as a muscle car. Another car that may be considered by many as a muscle car is the Chevrolet Camaro.
Which burns more fat a lean muscle or bulk muscle?
Answer There's no such thing. Muscle is muscle. There are no "lean" muscles or "bulky"muscles. Some people have a greater muscle mass, some have less muscle mass- but that mass is muscle. A pound of muscle is going to require energy to stay around. If you have a greater muscle mass, you'll have a greater metabolism. He's right you know. This is really splitting hairs!
What is the most superficial muscle of the pectoral region which is not found in humans?
The most superficial muscle of the pectoral region not found in humans is the "pectoralis major" muscle's variant called the "pectoralis quartus." This muscle is present in some other primates and serves a similar function as the pectoralis major but is absent in human anatomy. The pectoralis quartus can vary in its presence among different species, highlighting evolutionary differences in muscular development.
Which component is present in some viruses but absent in others?
Envelope
Can add cause muscle pain?
I don't believe so. Of course, some people with ADD may have muscle pains due to their individual cases, but in general, no.
What paralyzes muscles and make them floppy and reflexes are decreased or absent?
Botulinum toxin is able to paralyze muscles by blocking the release of acetylcholine at the neuromuscular junction. This results in muscle weakness and a floppy appearance. Reflexes may be decreased or absent due to the lack of communication between the nerves and muscles.
