真皮乳头层

结论该改良法ADM用于异种移植的最大优势在于无基底膜及真皮乳头层存在，抗原成分进一步降低。

CONCLUSION : The ADM prepared by the improved method reveals an important characteristic : there is no basement membrane and dermal papillary layer , and less amounts of xenogeneic antigens are retained than that prepared by the other two methods .

组织学变化：超声辐照后第1天，表皮完好，真皮乳头层水肿，轻度充血。

Microscopic changes : edema and gentle hyperemia exist in papillary layer of dermis 1 day later .

真皮乳头层毛细血管Lv显著高于真皮网状层（P<0.001）。

Statistically significantly ( P < 0 . 001 ) higher capillary Lv was found in the papillary dermis than in the reticular dermis .

使用OCT技术可以实现组织光学特性参数及一些结构信息的测量，同时OCT的穿透深度足以提供皮肤表皮和真皮乳头层的信息，因此OCT是实现无损测量和研究皮肤的有效手段。

An OCT can be used to measure the optical parameters and the structure of tissue . The penetration depth of OCT is sufficient to provide high-resolution images of the epidermis and papillary dermis .

真皮乳头层内上皮钉突间见黄色瘤样细胞（泡沫细胞）浸润。

The hallmark xanthoma cells deposited in the papillary dermis between the rete ridges .

组织学：辐照后，表皮内水疱，真皮乳头层充血水肿，随剂量的增加水疱及充血水肿变明显。

Microscopic changes : spongiosis and blisters formed in epidermis , hyperemia and edema existed in papillary layer of dermis .

结果：大鼠肛梳区的毛细淋巴管见于真皮乳头层，网状层、皮下组织、肌间可见到比较丰富毛细淋巴管和淋巴管。

RESULTS : There were comparatively plentiful capillary lymphatic vessels in the dermal papilla layer , reticular layer , hypodermis and inter-muscles .

结果（1）真皮乳头层内神经多分布在表皮下和血管丛附近。

Results ( 1 ) Cutaneous nerves were found below the epidermis and around the vascular plexus in the papilary layer of dermis .

温度觉、痛觉、痒觉由无髓鞘神经纤维传导，它们终止于真皮乳头层和毛囊周围。

Temperature , pain , and itch sensation are transmitted by unmyelinated nerve fibers which terminate in the papillary dermis and around hair follicles .

真皮乳头层较疏松，染色较淡，其下为网织层，较增生性瘢痕和瘢痕疙瘩薄，较致密，见粗大的胶原，染色深，较不规则，并可见毛细血管闭锁。

The dermal papilla is looser ; the reticular layer is thinner and denser than that in hypertrophic scar and keloid , dark stained collagen and atretic capillary could be seen .

组织病理学检查：角化过度、角质层内及角质层下裂隙，角质层内可见变性坏死的中性粒细胞和角蛋白碎屑，棘层细胞及真皮乳头层轻度水肿，嗜酸性粒细胞少见。

The skin biopsy showed hyperkeratosis of the stratum corneum and intracorneal and subcorneal cleft containing polymorphonuclear leucocytes , sparse eosinophils , and keratinous debris with mild edema of the epidermis and papillary dermis .

光镜：术后7天见真皮乳头及网状层，表皮较薄但见柱状排列整齐的生发层细胞，有较多毛囊、皮脂腺。

Optics microscope showed : On the seventh day after operation dermic papillary and reticular layer existed , the epidermis was thinner but germinative layer cells arrayed tidily like pillar , and there were many hair follicle and sebaceous gland .

妊娠75～85天真皮逐渐分化出乳头层和网状层，妊娠120～135天结构基本稳定。

The dermis divides into the papilla and reticular layer gradually on 85 days after pregnancy . Skin construction is stable from 120 to 135 days after pregnancy .

本文报道了一种用酶水解表皮与真皮的连接，然后用扫描电镜观察微小损伤在真皮乳头层的损伤特点的新方法。

This paper presents a new method of separating the junction between the epidermis and the dermis with enzyme , and then , observing the small wound of the papillary of the dermis by means of SEM .