The Health Education Assets Library (HEAL) is a collection of over 22,000 freely available digital materials for health sciences education. The collection is now housed at the University of Utah J. Willard Marriott Digital Library.
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Filters: Collection: "ehsl_heal"
| Title | Description | Subject | Collection | ||
|---|---|---|---|---|---|
| 251 |
 |
Spider telangiectasia | The red lesion on the nose is a spider telangiectasia. | Knowledge Weavers Dermatology | |
| 252 |
 |
Kidney, acute infarction | Kidney, acute infarction | Knowledge Weavers Pathology | |
| 253 |
 |
Pituitary | This sagittal slice shows the neural stalk as it turns posteriorly to form the pars nervosa. The neural stalk is made up of axons from the supraoptic and paraventricular nuclei of the hypothalamus. One can clearly recognize the difference between the pars distalis and the neural tissue. Also, an hyp... | Pituitary; pars nervosa | UCLA Histology |
| 254 |
 |
Eye - Ciliary Muscle | The ciliary muscle is used during accommodation. The muscle consists of longitudinal and circular fibers. The circular fibers perform a sphincter - like motion and the longitudinal fibers pull the choroid forward. In either case, tension on the zonular fibers of the lens is reduced and the lens bulg... | Ciliary Muscle | UCLA Histology |
| 255 |
 |
Smooth Muscle | The wall of the digestive tract contains a thick inner layer of circular smooth muscle, a thick outer layer of longitudinal smooth muscle, and a thin layer of connective tissue which separates them. Try to find the cigar-shaped nuclei of longitudinally sectioned smooth muscle cells. UCLA Histology C... | gastrointestinal tract; Intestine; Smooth Muscle | UCLA Histology |
| 256 |
 |
Fleas | The flea. These have been shown to live up to 40 days without a blood meal. The major disease we see in the Intermountain West that is carried by fleas is plague, and this is actually seen very rarely. | Knowledge Weavers Dermatology | |
| 257 |
 |
Gastrointestinal Tract | High power view of the sublingual gland showing striated ducts lined by low columnar epithelium. Note the numerous mixed alveoli composed of mucous alveoli capped by serous serous demilunes. UCLA Histology Collection. | gastrointestinal tract; sublingual gland | UCLA Histology |
| 258 |
 |
Skeletal Muscle | Identify extra fusal and intrafusal muscle fibers, and compare their cross-sectional shapes and sizes. Note the spindle capsule which surrounds the intra-fusal fibers. UCLA Histology Collection. | muscle spindle; skeletal muscle | UCLA Histology |
| 259 |
 |
Scalpel | This shows the scalpel, handle and blade. Note that the angle at the base of the blade, as well as the ankle at the attachment base of the scalpel handle should be the same. | Knowledge Weavers Dermatology | |
| 260 |
 |
Adrenal | Higher magnification of the outer layers of the adrenal cortex including the capsule. The boundary between zona glomerulosa and zona fasciculata is quite irregular. UCLA Histology Collection. | Adrenal | UCLA Histology |
| 261 |
 |
Metastatic lung carcinoma | Metastatic lung carcinoma | Knowledge Weavers Pathology | |
| 262 |
 |
Peripheral Nervous System | This is a sympathetic ganglion but all autonomic ganglias will have similar characteristics. The neuronal cell bodies are multipolar with a large eccentric nucleus. Satellite cell nuclei are distributed between the neurons but are often separated from the neurons by a space. This space is the locati... | ganglion; Peripheral Nervous System | UCLA Histology |
| 263 |
 |
Structures of acetoxy progestins (pregnane steroids) | From C. Matthew Peterson, M.D. Progestogens, Progesterone Antagonists, Progesterone, and Androgens: Synthesis, Classification and Uses, Clinical Obstetrics and Gynecology, 1995; 38: 813-20. The structures of acetoxy progestins (pregnane steroids). | Knowledge Weavers Human Reproduction | |
| 264 |
 |
Respiratory System | A macrophage rests on the alveolar wall. It is difficult to differentiate between type I pneumocytes and endothelial cells lining the alveolar capillaries. The type II pneumocytes, which produce surfactant, have large round nuclei with prominent nucleoli. UCLA Histology Collection. | Lung; pneumocytes; Respiratory System | UCLA Histology |
| 265 |
 |
Ear | This image shows one section through the coiled cochlear canal. The scala vestibuli and scala tympani are filled with perilymph, and the scala media is filled with endolymph. Also visible is a section of the spiral ganglion and the large acoustic nerve. The cochlea is encased in bone. UCLA Histology... | Cochlea; Ear | UCLA Histology |
| 266 |
 |
Suturing | The short and (non-needle bearing end) of the suture is then grasped with the needle holder, and the suture is pulled taut forming a double loop as shown here in cross-section. One cannot tighten the suture by pulling across the wound, and | Knowledge Weavers Dermatology | |
| 267 |
 |
Wound culturing | If the tissue around the wound is red and tender suggesting infection, then the wound should be cultured. The best mode of culture of a long-standing wound is to actually biopsy tissue at the base of the wound and culture that tissue. | Knowledge Weavers Dermatology | |
| 268 |
 |
Placenta | Uterine Decidual Cells. This image of the postpartum uterus illustrates the marked change in the endometrial stromal cells as they become decidual cells. UCLA Histology Collection. | Decidual Cells; Placenta; uterus | UCLA Histology |
| 269 |
 |
Ovary | This image illustrates the relatively acellular scar of a corpus luteum, the corpus albicans embedded in the stroma. UCLA Histology Collection. | corpus albicans; Ovary | UCLA Histology |
| 270 |
 |
Renal cell carcinoma | Renal cell carcinoma | Knowledge Weavers Pathology | |
| 271 |
 |
Skeletal Muscle | Note the sarcomeres in this image, and relate them to previous images. Identify the peripherally located myonuclei in both cross-sectioned and longitudinally sliced fascicles. Also identify the fibroblasts of the connective tissue sheath which surrounds the muscle fiber seen here. UCLA Histology Col... | skeletal muscle; Tongue | UCLA Histology |
| 272 |
 |
Pituitary | This sagittal slice shows the components of the pituitary stalk: the pars tuberalis and the neural stalk. The hypophyseal portal vessels of the pars tuberalis can be seen here in longitudinal section. The neural stalk is composed of axons which terminate in the pars nervosa (posterior pituitary). UC... | Pituitary; pituitary stalk | UCLA Histology |
| 273 |
 |
Placenta | Most of this image consists of a tertiary fetal villus. Note the fetal blood vessels and the fetal mesenchyme. The fetal villus is lined by the syncytiotrophoblast but cytotrophoblast cells are still present. The maternal blood space is obvious. UCLA Histology Collection. | Placenta | UCLA Histology |
| 274 |
 |
Male Urinary System | One of the hallmarks of the prostatic gland is a prostatic concretion. This tubulo-alveolar gland is lined by a pseudostratified epithelium (here the basal cells are easily observed). UCLA Histology Collection. | Prostate; prostatic concretion; prostatic gland | UCLA Histology |
| 275 |
 |
Gastrointestinal Tract - Lip | This is a low power view of the mucous (oral) aspect of the lip. Here the lip is covered by non-keratinized stratified squamous epithelium. Note that the dermis contains labial glands (predominantly mucous salivary glands). UCLA Histology Collection. | UCLA Histology |