35. The perspiration produced by merocrine (eccrine) sweat glands a. is mostly w

Question

35. The perspiration produced by merocrine (eccrine) sweat glands a. is mostly water b. is sensible perspiration c. helps cool the body d. helps protect the skin from bacteria e all of the above 36. Which of the following is found in the dermis? a. capillaries b. small arteries and veins e. sensory receptors d. collagen fibers e. all of the above 37. When the arrector pili muscles contract a. b. c. d. e. goose bumps form hairs are shed melanin is produced blood vessels dilate all of the above 38. The layer of epidermis that thickens the skin on the soles of the feet is the: a. stratum basale b. stratum corneum c. stratum granulosum d. stratum lucidum e stratum spinosum 39. Maintaining homeostasis in a living organism may involve the regulation of: a. internal temperature b. water content of extracellular fluid c. oxygen concentration of blood d. pH of blood plasma e. all of the above initiates physiological changes to 40. When body decrease the body temperature. This is an example of temperature rises, a center in the brain i a. diagnostic regulation. b. positive feedback. c. negative feedback. e. fever

Explanation / Answer

35 The perspiration produced by merocrine (eccrine) sweat glands:

Answer:- e. all of the above

Explanation:-

Sweat glands are of two types merocrine and apocrine that found all over the on skin surface. These are coiled glands situated under in the dermis and it’s duct rises to pore on the skin surface from where the sweat is released. Sweat or perspiration by merocrine or eccrine gland, is hypotonic solution mostly contain water contains and some salt, antimicrobial substance that protect the skin from bacteria . It play vital role in thermoregulation to cool body.

36 which of the following is found in the dermis :

Answer:- e. all of the above

Explanation:- dermis is an important part of the integumentary system . It contains blood vessels ( capillaries, small armies and veins ), nerves and structures such as hair follicles sweat glands and has sensitive receptors. It is made of layers of connective tissue made up of an interconnected network of elastin and collagenous fibers.

37 when the arrector pili muscles contract:

Answer:- a. goose bumps form

Explanation:-Hair root of each hair is connected to a smooth muscle known as arrector pili that contracts in response to nerve signals received from the sympathetic nervous system and make the hair shaft to stand up thus goose bumps form.

38 The layer of epidermis that thickens the skin on the soles of the feet is the :

Answer:- d. Stratum ludium

Explanation:-The epidermis of skin is made up of stratified squamous epithelium comprises five layers of epithelial cells ( categorised on their location in the body ) as the stratum basale, stratum spinosum, stratum granulosum, stratum corneum and Stratum ludium . Stratum ludium is the layer of epidermis that thickens the skin on the soles of the feet.

39 Maintaining homeostasis in a living organism may involve the regulation of:

Answer:- e. all of the above

Explanation:-Homeostasis is responsible for maintenance of constant conditions in the body and is the fundamental for each living organism. Maintaining homeostasis involves regulation of internal temperature, water content of extra cellular fluid, oxygen concentration of blood, blood pressure, pH of blood plasma.

40 when body temperature rises, a center in the brain initiates physiological chances to describe the body temperature. This is an example of:

Answer:- c. negative feedback

Explanation:-Physiological condition like regulation of body temperature fluctuates within a normal range a few degrees up or down. Control centers in the brain and other parts of the body regulate deviations in body temperature by homeostasis using negative feedback in which there is reverses a deviation of temperature to particular set temperature.

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