Results 161 to 170 of about 115,083 (267)

Human evolution and the obstetrical dilemma: The pelvic floor hypothesis

The Anatomical Record, EarlyView.
Abstract Human childbirth is mechanically difficult because a large‐headed, broad‐shouldered fetus must pass through a comparatively narrow, twisted bony birth canal. Traditional explanations of this “obstetrical dilemma” emphasize the role of bipedal locomotion in inhibiting the evolution of a wider, more spacious pelvis.
Barbara Fischer, Ekaterina Stansfield
wiley   +1 more source

The Interplay Between Trace Elements, Morphometry, and Semen Quality in Bucks During the Breeding Season. [PDF]

Vet Med Sci
Güngör Ş, Enes Inanç M, Herdoğan M, Kahraman D, Ali Çay H, Nur Mart F, Gürkan Dilek Ö, Yildiz R, Atalay Uslu B, Ata A.   +9 more
europepmc   +1 more source

Morphophysiological dynamics of the proximal post‐testicular ducts in Crotalus durissus Linnaeus, 1758 (Squamata: Viperidae)

The Anatomical Record, EarlyView.
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende, Gustavo Caldeira Cotta, Clara d' Ávila Fonseca Paiva de Paula Freitas, Leonardo Carvalho, Heloísa Helena Marques Oliveira, Victória Gomes Carvalho Silva, Lívia de Fátima Moreira Silva, Luciana Maria Silva, Samyra Maria dos Santos Nassif Lacerda, Guilherme Mattos Jardim Costa   +9 more
wiley   +1 more source

Quantitative assessment of lower eyelid morphology following orbital floor fracture repair. [PDF]

JPRAS Open
Nakanishi M, Watanabe H, Ishimoto S, Suzuki T, Nishioka T, Uemura K, Sakata Y, Asamura S.   +7 more
europepmc   +1 more source

Variable grouping patterns in primates: A test of the better competitor hypothesis in male Verreaux's sifaka (Propithecus verreauxi)

The Anatomical Record, EarlyView.
Abstract Intraspecific variation in social organization (IVSO) within primate populations can arise due to male mating competition. Verreaux's sifaka (Propithecus verreauxi) populations exhibit both single‐male and multi‐male groups, providing an opportunity to examine the relationship between male competitive ability and social organization.
Lemeng Li, Stacey R. Tecot, Rebecca J. Lewis   +2 more
wiley   +1 more source

Development and Histopathological Validation of a Novel Unilateral Three-Level Lumbar Artery Ligation Model of Progressive Intervertebral Disc Degeneration. [PDF]

Orthop Rev (Pavia)
Ugur F, Sarikas N, Cinar I, Kayikci K, Albayrak M.   +4 more
europepmc   +1 more source

Morphometrics in Encephalartos

South African Journal of Botany, 2015
P. Rousseau, P.J. Vorster, A.E. Van Wyk
openaire   +1 more source

Postnatal craniomandibular growth in Harbor seals (Phoca vitulina vitulina)

The Anatomical Record, EarlyView.
Postnatal ontogeny in Harbor seals (Phoca vitulina vitulina). Cranium and mandible grow rapidly until 5 years of age, followed by a deceleration and finally a stagnation. Abstract As secondarily aquatic carnivores, seals display several phenotypic differences compared to their terrestrial relatives.
Elisabeth Steinbach, Julia Schaar, Christine Böhmer   +2 more
wiley   +1 more source

Humans and platyrrhines share a pattern of articular variance

The Anatomical Record, EarlyView.
Abstract Previous work has identified a pattern of articular shape variation in modern human limb joints, in which convex joint surfaces exhibit constrained variance relative to their more variable concave conarticulars. This pattern is notable given that joint morphogenesis is influenced by local biomechanical environments, which vary substantially ...
Haley Horbaly, Liam Zachary
wiley   +1 more source

The morphometric features derived as the predictors of acute ischemic stroke recurrence. [PDF]

Front Neurosci
Sun J, Dong P, Wang L, Long J, Qi Y, Song L.   +5 more
europepmc   +1 more source