Myoepithelial cells in bovine sweat glands

Goodall, A. Myfanway; Yang, Shuai

doi:10.1017/s0021859600058755

Cited by 11 publications

(4 citation statements)

References 3 publications

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“…The effect of intradermal injection of oxytocin was examined because of the well-developed layer of myoepithelial cells present in bovine sweat glands (Goodall & Yang, 1952).…”

Section: Dermal Gland Responses To Intradermal Injectionsmentioning

confidence: 99%

The role of the sympatho‐adrenal system in the control of sweating in the ox (Bos taurus).

Findlay¹,

Robertshaw²

1965

The Journal of Physiology

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“…The effect of intradermal injection of oxytocin was examined because of the well-developed layer of myoepithelial cells present in bovine sweat glands (Goodall & Yang, 1952).…”

Section: Dermal Gland Responses To Intradermal Injectionsmentioning

confidence: 99%

The role of the sympatho‐adrenal system in the control of sweating in the ox (Bos taurus).

Findlay¹,

Robertshaw²

1965

The Journal of Physiology

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“…The structure, and in some cases the density, of the hair follicles and their associated structures, has been studied by de Meijere (1894), Yamane and Ono (1936), Barisson Villares and Berthet (1951a), Carter and Dowling (1954), Dowling (1955aDowling ( , 1955b, Shafei (1955a, 1955b), and Walker (1957b). Other work, directed particularly to the structural and functional aspects of sweat glands, has been carried out 'by Findlay and Yang (1950), Barrison Villares and Berthet (1951b), Goodall and Yang (1952), Yang (1952), Ferguson and Dowling (1955), Nay and .Hayman (1956), and Nay and Dowling (1957). Furthermore, Findlay and Yang (1948) and Goodall and Yang (1954) investigated capillary distribution in the skin, and Dowling (1955b), Walker (1957a), and Patel and Anderson (1958) measured skin thickness.…”

Section: Introductionmentioning

confidence: 99%

The Pre-Natal Development of Skin and hair in Cattle (Bos Taurus L.)

Lyne¹,

Heideman²

1959

Aust. Jnl. Of Bio. Sci.

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A histological study has been made of the development of the skin and hair follicles in 33 foetuses, ranging in age from 68 to 274 days, and seven new-born specimens, of various breeds of Bos taurus L. Skin samples were taken from the mid-lateral region of the trunk, and both serial sections and whole mount preparations have been examined. Extensive use has been made of' counts of the follicle and hair population as well as skin and hair follicle measurements which hitherto have apparently received little attention in studies of this type.

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“…The body of the gland lies adjacent to the hair follicle, while the duct ascends upwards penetrating the base of the pili muscle and the sebaceous glands. In both Ayrshire and Zebu cattle, the myoepithelial cells are similar in structure, location and arrangement (Goodall & Yang, 1951) while in Formosa buffaloes, the myoepithelial band of the sweat gland is limited to certain parts of the gland body (Yamane & Ono, 1936). The sweat glands are poorly supplied with blood capillaries as demonstrated in Ayrshires (Findlay & Yang, 1950), while there is a rich supply of sympathetic nerves (Trautmann & Fiebiger, 1952).…”

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confidence: 99%

Skin structure of Egyptian buffaloes and cattle with particular reference to sweat glands

1955

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The structure, distribution and dimensions of skin strata and sweat glands have been investigated in Egyptian buffaloes and cattle. Samples from sixteen body regions were taken from three adult bulls of both species. Identical studies were also made on one buffalo calf and two buffalo embryos. Serial vertical and horizontal sections were cut from each body region using the ‘terpineol paraffin wax’ method. The following results were obtained.1. Buffalo skin is characterized by dermal papillae enclosing papillomatous epidermis. The fibrous structure of the dermis is similar in both species. In buffaloes, the average thickness of skin, main epidermis, papillomatous epidermis, and cornium is 6·5 mm., 50, 115, and 11μ respectively. The epidermis coefficient is 12 for the main epidermis and 18 for the papillomatous epidermis. In cattle, the average thickness of skin, epidermis and cornium layer is 4·3 mm., 51 and 5 μ respectively, while the epidermis coefficient is 8.2. The average number of hair follicles per sq.cm. of skin is 394 in the buffalo and 2633 in cattle. Each hair follicle is accompanied by two large lobulated sebaceous glands in the buffalo, and one small bilobed gland in cattle.3. There is no species difference in the histology of the sweat glands. Each hair follicle is accompanied by one sweat gland in both species. In the buffalo, the body of the sweat gland is oval and convoluted, while the duct is twisted at its attachment to the body. In cattle, the body of the gland is elongated while the duct is straight. The number of sweat glands per sq.cm. of skin is 394 in the buffalo and 2633 in cattle. The dimensions of the sweat glands are larger in buffaloes than in cattle. The length, circumference and sweating surface of the gland is 0·58, 0·47, and 0·276 sq.mm. in the buffalo, and 0·47, 0·26, and 0·124 sq.mm. in cattle respectively. The glandular surface of sweat glands per sq.cm. of skin is 1·07 sq.cm. in the buffalo and 3·08 sq.cm. in cattle.4. The type of sweat gland secretion is apocrine in both species. In the buffalo, successive stages of apocrine secretion are observed, and the merocrinelike form is rare. In cattle, the merocrine-like form prevails and the other stages are very rare. The theory (Findlay & Yang, 1950) of intraluminal transformation, of secretory products from coarse granularity to fluid homogeneity is supported. The effect of locality on the type of sweating activity is stressed.5. There are species differences in the distribution of blood vessels and capillaries. In the subepidermal level, the arterial branches are more frequent and superficial in buffaloes than in cattle. Capillaries are found in the dermal papillae of buffalo skin. The capillary loops encircling the hair follicle are more frequent in cattle than in buffaloes. The blood capillaries supplying the sebaceous glands are more numerous in the buffalo than in cattle. The blood supply of sweat glands is poor in both species.6. There are age differences in the skin histology. The number of hair follicles per sq.cm. of skin in a 5-months-old embryo, calf at birth, and adult buffaloes is 10560, 1248 and 400 respectively. There are no skin glands in the 1-month and 5-months-old embryos. The sweat gland in the calf is small in size and similar in structure to that of the adult. Calves have fewer sweat glands than adults.7. The body conformation and the degree of pigmentation are affected by species, breed and locality.8. The secreting activity of the sweat glands may be affected by the locality.9. It seems that there are species differences in the mechanism of heat convection and radiation, insensible perspiration and sensible perspiration, due to histological differences.

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Myoepithelial cells in bovine sweat glands

Cited by 11 publications

References 3 publications

The role of the sympatho‐adrenal system in the control of sweating in the ox (Bos taurus).

The role of the sympatho‐adrenal system in the control of sweating in the ox (Bos taurus).

The Pre-Natal Development of Skin and hair in Cattle (Bos Taurus L.)

Skin structure of Egyptian buffaloes and cattle with particular reference to sweat glands

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