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The type of hair that almost never has a medulla is fine or vellus hair. Vellus hair is the soft, thin, and lightly pigmented hair that covers much of the human body, particularly in areas where terminal hair is not present. Unlike terminal hair, which is thicker and often has a medulla, vellus hair typically lacks this central core structure.
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The inner core of a hair is called the?
The inner core of a hair is called the medulla. It is a central part of the hair shaft found in some types of hair, but it may be absent in others, depending on the hair type.
How do you find the medulla in a hair?
To find the medulla in a hair strand, you should first examine it under a microscope, as the medulla is a central core that may not be visible to the naked eye. Look for a distinct, often lighter or hollow area running longitudinally through the hair shaft. The medulla can vary in appearance; it may be absent, fragmented, or continuous depending on the type of hair. Observing cross-sections can also help in identifying the medulla's presence and structure.
What is the explanation for the cuticle cortex and medulla?
The cuticle is the outer scale section of the hair. it contains 10% of the hair"s weight. A healthy cuticle will result in a shine, glossy. smooth and soft textured hair. The cortex is the inner section of the hair shaft. This contains for 75% of the hair's strength. In the cortex is where the chemical bonds are broken. The medulla this is in the innermost part of the hair. It consist of tunnels of cells filled with air spaces running continuously or intermittently through the hair. A medulla is present in most hair type except thin.
What Type of muscle that conrols voluntary movement?
medulla
What type of microscope is useful for viewing human hair?
A compound light microscope is typically used to view human hair. This type of microscope can provide detailed images of the hair structure, such as the cuticle, cortex, and medulla. Magnification and lighting adjustments can help in examining hair samples more closely.
What type of chemical makes your hair smooth?
What type of chemical that makes your hair smooth is conditioner. Conditioners are almost a bubble that reduces the ruff hair and makes it smooth.
Can African American hair curl after you wet it?
How the hair curls after wet depends on the type of hair they have. In some cases, their hair will curl after you wet it. In almost all cases, if they get a perm and wet their, it remains straight.
What causes hair to not cooperate?
What causes hair not to cooperate is often the weather. Humid and hot air can cause hair to become frizzy or to fall flat quickly. Wet weather wrecks almost any type of hair style.
What shampoos dont give you frizzy hair?
every shampoo has it's effect depending on the hair type . . you can never tell what shampoo it is unless you try it . .
Type of response controlled by the medulla?
The medulla controls vital functions such as heart rate, breathing, and blood pressure. It also plays a role in reflexes like coughing, sneezing, and swallowing.
What type of polio involves the infection of the brainstem and medulla is?
Bulbar polio involves the infection of the brainstem and medulla. It can lead to difficulty breathing, swallowing, and speaking due to paralysis of the muscles in these areas.
What hairstyle for boys is the coolest?
Depends on the type of guy? But: - Long hair that flips to the side - Short hair spiked in the front (fo-hawk) - Long hair- you put a hat on and the hair will do the rest it flips upwards almost like Justin bieber... But not as gay (;
